diff --git a/.openpublishing.redirection.json b/.openpublishing.redirection.json
index 67a110feea..316aca845d 100644
--- a/.openpublishing.redirection.json
+++ b/.openpublishing.redirection.json
@@ -1,6 +1,7 @@
 {
   "redirections": [
 // Instructions: https://review.learn.microsoft.com/help/platform/redirect-articles
+// Update "redirect_url" to current url; avoid chaining via old path; group entries that point to same "redirect_url".
 // Sections:
 
 // Release notes
@@ -162,103 +163,310 @@
 // /Microsoft Edge DevTools
 // ============================================================================
 // Microsoft Edge extensions
+      // entries older than 2025/06/19:
       {
-        "source_path": "./microsoft-edge/extensions-chromium/enterprise/declare-permissions.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/developer-guide/declare-permissions",
+        "source_path": "./microsoft-edge/extensions-chromium/getting-started/part1-simple-extension.md",
+        "redirect_url": "/microsoft-edge/extensions/getting-started/picture-viewer-popup-webpage",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/extensions-chromium/enterprise/match-patterns.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/developer-guide/match-patterns",
+        "source_path": "./microsoft-edge/extensions-chromium/getting-started/part2-content-scripts.md",
+        "redirect_url": "/microsoft-edge/extensions/getting-started/picture-inserter-content-script",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/extensions-chromium/enterprise/hosting-and-updating.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/publish/hosting-and-updating",
+        "source_path": "./microsoft-edge/extensions-chromium/store-policies/csp.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/csp",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/extensions-chromium/publish/contact-us.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/publish/contact-extensions-team",
+        "source_path": "./microsoft-edge/extensions-chromium/enterprise/declare-permissions.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/declare-permissions",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/extensions-chromium/publish/upload-video.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/publish/publish-extension",
+        "source_path": "./microsoft-edge/extensions-chromium/enterprise/match-patterns.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/match-patterns",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/extensions-chromium/store-policies/csp.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/developer-guide/csp",
+        "source_path": "./microsoft-edge/extensions-chromium/enterprise/hosting-and-updating.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/hosting-and-updating",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/extensions-chromium/getting-started/part1-simple-extension.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/getting-started/picture-viewer-popup-webpage",
+        "source_path": "./microsoft-edge/extensions-chromium/publish/upload-video.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/publish-extension",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/extensions-chromium/getting-started/part2-content-scripts.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/getting-started/picture-inserter-content-script",
+        "source_path": "./microsoft-edge/extensions-chromium/publish/add-ons-store-curation.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/add-ons-curation",
         "redirect_document_id": false
       },
-// Extensions > Update
       {
-        "source_path": "./microsoft-edge/extensions-chromium/publish/update.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/publish/update-extension",
+        "source_path": "./microsoft-edge/extensions-chromium/publish/contact-us.md",
+        "redirect_url": "/microsoft-edge/extensions/contact",
         "redirect_document_id": false
       },
+      // two entries go to same:
       {
-        "source_path": "./microsoft-edge/extensions-chromium/enterprise/auto-update.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/publish/auto-update",
+        "source_path": "./microsoft-edge/extensions-chromium/publish/update.md",
+        "redirect_url": "/microsoft-edge/extensions/update/update-extension",
         "redirect_document_id": false
       },
       {
         "source_path": "./microsoft-edge/extensions-chromium/publish/update-extension.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/update/update-extension",
+        "redirect_url": "/microsoft-edge/extensions/update/update-extension",
         "redirect_document_id": false
       },
       {
         "source_path": "./microsoft-edge/extensions-chromium/publish/api/using-addons-api.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/update/api/using-addons-api",
+        "redirect_url": "/microsoft-edge/extensions/update/api/using-addons-api",
         "redirect_document_id": false
       },
       {
         "source_path": "./microsoft-edge/extensions-chromium/publish/api/addons-api-reference.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/update/api/addons-api-reference",
+        "redirect_url": "/microsoft-edge/extensions/update/api/addons-api-reference",
+        "redirect_document_id": false
+      },
+      // two entries go to same:
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/enterprise/auto-update.md",
+        "redirect_url": "/microsoft-edge/extensions/update/auto-update",
         "redirect_document_id": false
       },
       {
         "source_path": "./microsoft-edge/extensions-chromium/publish/auto-update.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/update/auto-update",
+        "redirect_url": "/microsoft-edge/extensions/update/auto-update",
         "redirect_document_id": false
       },
+      // /entries older than 2025/06/19
+      // extensions toc 2025/06/19:
       {
-        "source_path": "./microsoft-edge/extensions-chromium/publish/add-ons-store-curation.md",
-        "redirect_url": "/microsoft-edge/extensions-chromium/publish/add-ons-curation",
+        "source_path": "./microsoft-edge/extensions-chromium/landing/index.yml",
+        "redirect_url": "/microsoft-edge/extensions/landing/index",
         "redirect_document_id": false
       },
-// /Microsoft Edge extensions
-// ============================================================================
-// Progressive Web Apps
       {
-        "source_path": "./microsoft-edge/progressive-web-apps/index.md",
-        "redirect_url": "/microsoft-edge/progressive-web-apps-chromium/index",
+        "source_path": "./microsoft-edge/extensions-chromium/index.md",
+        "redirect_url": "/microsoft-edge/extensions/index",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/progressive-web-apps-chromium/serviceworker.md",
-        "redirect_url": "/microsoft-edge/progressive-web-apps-chromium/how-to/service-workers",
+        "source_path": "./microsoft-edge/extensions-chromium/whats-new/released-features.md",
+        "redirect_url": "/microsoft-edge/extensions/whats-new/released-features",
         "redirect_document_id": false
       },
       {
-        "source_path": "./microsoft-edge/progressive-web-apps-chromium/webappmanifests.md",
-        "redirect_url": "/microsoft-edge/progressive-web-apps-chromium/how-to/web-app-manifests",
+        "source_path": "./microsoft-edge/extensions-chromium/whats-new/roadmap.md",
+        "redirect_url": "/microsoft-edge/extensions/whats-new/roadmap",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/getting-started/index.md",
+        "redirect_url": "/microsoft-edge/extensions/getting-started/index",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/getting-started/picture-viewer-popup-webpage.md",
+        "redirect_url": "/microsoft-edge/extensions/getting-started/picture-viewer-popup-webpage",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/getting-started/picture-inserter-content-script.md",
+        "redirect_url": "/microsoft-edge/extensions/getting-started/picture-inserter-content-script",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/getting-started/extension-sideloading.md",
+        "redirect_url": "/microsoft-edge/extensions/getting-started/extension-sideloading",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/port-chrome-extension.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/port-chrome-extension",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/getting-started/manifest-format.md",
+        "redirect_url": "/microsoft-edge/extensions/getting-started/manifest-format",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/csp.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/csp",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/manifest-v3.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/manifest-v3",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/migrate-your-extension-from-manifest-v2-to-v3.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/migrate-your-extension-from-manifest-v2-to-v3",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/api-support.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/api-support",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/declare-permissions.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/declare-permissions",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/devtools-extension.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/devtools-extension",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/sidebar.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/sidebar",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/native-messaging.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/native-messaging",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/run-compiled-code.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/run-compiled-code",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/match-patterns.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/match-patterns",
+        "redirect_document_id": false
+      },
+      /* placeholders to match toc, n/a, external entries in toc:
+      {
+        "source_path": "/legal/microsoft-edge/extensions/ada-addendum",
+        "redirect_url": "/legal/microsoft-edge/extensions/ada-addendum",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "/legal/microsoft-edge/extensions/developer-policies",
+        "redirect_url": "/legal/microsoft-edge/extensions/developer-policies",
+        "redirect_document_id": false
+      },*/
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/create-dev-account.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/create-dev-account",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/verify-microsoft-edge-program.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/verify-microsoft-edge-program",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/aad-account.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/aad-account",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/github.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/github",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/manage-settings.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/manage-settings",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/publish-extension.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/publish-extension",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/hosting-and-updating.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/hosting-and-updating",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/submission-states.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/submission-states",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/alternate-distribution-options.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/alternate-distribution-options",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/add-ons-curation.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/add-ons-curation",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/update/update-extension.md",
+        "redirect_url": "/microsoft-edge/extensions/update/update-extension",
         "redirect_document_id": false
       },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/update/api/using-addons-api.md",
+        "redirect_url": "/microsoft-edge/extensions/update/api/using-addons-api",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/update/api/addons-api-reference.md",
+        "redirect_url": "/microsoft-edge/extensions/update/api/addons-api-reference",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/update/auto-update.md",
+        "redirect_url": "/microsoft-edge/extensions/update/auto-update",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/update/transfer-ownership.md",
+        "redirect_url": "/microsoft-edge/extensions/update/transfer-ownership",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/extensions-analytics.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/extensions-analytics",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/reply-user-reviews.md",
+        "redirect_url": "/microsoft-edge/extensions/publish/reply-user-reviews",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/best-practices.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/best-practices",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/developer-guide/minimize-page-load-time-impact.md",
+        "redirect_url": "/microsoft-edge/extensions/developer-guide/minimize-page-load-time-impact",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/samples.md",
+        "redirect_url": "/microsoft-edge/extensions/samples",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/extensions-chromium/publish/contact-extensions-team.md",
+        "redirect_url": "/microsoft-edge/extensions/contact",
+        "redirect_document_id": false
+      },
+      // /extensions toc 2025/06/19
+// /Microsoft Edge extensions
+// ============================================================================
+// Progressive Web Apps
+      // older entries:
       {
         "source_path": "./microsoft-edge/progressive-web-apps-chromium/get-started.md",
-        "redirect_url": "/microsoft-edge/progressive-web-apps-chromium/how-to/index",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/index",
         "redirect_document_id": false
       },
       {
@@ -273,7 +481,13 @@
       },
       {
         "source_path": "./microsoft-edge/progressive-web-apps-chromium/offline.md",
-        "redirect_url": "/microsoft-edge/progressive-web-apps-chromium/how-to/offline",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/offline",
+        "redirect_document_id": false
+      },
+      // two related entries:
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/webappmanifests.md",
+        "redirect_url": "https://developer.mozilla.org/docs/Web/Progressive_web_apps/Guides/Making_PWAs_installable#the_web_app_manifest",
         "redirect_document_id": false
       },
       {
@@ -281,11 +495,138 @@
         "redirect_url": "https://developer.mozilla.org/docs/Web/Progressive_web_apps/Guides/Making_PWAs_installable#the_web_app_manifest",
         "redirect_document_id": false
       },
+      // two related entries:
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/serviceworker.md",
+        "redirect_url": "https://developer.mozilla.org/docs/Web/API/Service_Worker_API/Using_Service_Workers",
+        "redirect_document_id": false
+      },
       {
         "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/service-workers.md",
         "redirect_url": "https://developer.mozilla.org/docs/Web/API/Service_Worker_API/Using_Service_Workers",
         "redirect_document_id": false
       },
+      // pwa toc 2025/06/19:
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/landing/index.yml",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/landing/index",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/index.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/index",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/whats-new/pwa.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/whats-new/pwa",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/index.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/index",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/ux.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/ux",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/window-controls-overlay.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/window-controls-overlay",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/share.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/share",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/shortcuts.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/shortcuts",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/widgets.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/widgets",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/sidebar.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/sidebar",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/app-actions.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/app-actions",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/microsoft-store.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/microsoft-store",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/digital-goods-api.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/digital-goods-api",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/background-syncs.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/background-syncs",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/notifications-badges.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/notifications-badges",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/push.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/push",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/handle-files.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/handle-files",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/handle-urls.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/handle-urls",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/handle-protocols.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/handle-protocols",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/icon-theme-color.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/icon-theme-color",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/offline.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/offline",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/best-practices.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/best-practices",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/how-to/debug.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/how-to/debug",
+        "redirect_document_id": false
+      },
+      {
+        "source_path": "./microsoft-edge/progressive-web-apps-chromium/demo-pwas.md",
+        "redirect_url": "/microsoft-edge/progressive-web-apps/demo-pwas",
+        "redirect_document_id": false
+      },
 // /Progressive Web Apps
 // ============================================================================
 // WebView2
@@ -3226,11 +3567,12 @@
         "redirect_url": "/archive/microsoft-edge/legacy/developer",
         "redirect_document_id": false
       },
+      /* reusing this old source_path as a new redirect_url, above
       {
         "source_path": "./microsoft-edge/extensions/index.md",
         "redirect_url": "/archive/microsoft-edge/legacy/developer",
         "redirect_document_id": false
-      },
+      },*/
       {
         "source_path": "./microsoft-edge/extensions/api-support.md",
         "redirect_url": "/archive/microsoft-edge/legacy/developer",
diff --git a/microsoft-edge/dev-videos/index.md b/microsoft-edge/dev-videos/index.md
index 1d538f63b1..b753f970ab 100644
--- a/microsoft-edge/dev-videos/index.md
+++ b/microsoft-edge/dev-videos/index.md
@@ -208,7 +208,7 @@ Covers:
 
 See also:
 * [What's New in DevTools (Microsoft Edge 108)](../devtools-guide-chromium/whats-new/2022/12/devtools-108.md)<!-- has Video section -->
-* [Create a DevTools extension, adding a custom tool tab and panel](../extensions-chromium/developer-guide/devtools-extension.md)
+* [Create a DevTools extension, adding a custom tool tab and panel](../extensions/developer-guide/devtools-extension.md)
 * [The heap snapshot file format](../devtools-guide-chromium/memory-problems/heap-snapshot-schema.md)
 * [Microsoft Edge WebDriver](https://developer.microsoft.com/microsoft-edge/tools/webdriver/?form=MA13LH) - download Edge WebDriver.
 
@@ -349,7 +349,7 @@ Covers:
 
 See also:
 * [What's New in DevTools 104](../devtools-guide-chromium/whats-new/2022/08/devtools-104.md)<!-- has Video section -->
-* [Debug the web in 3D with the 3D View tool](https://aka.ms/debug-in-3d) - blog post.
+* [Debug the web in 3D with the 3D View tool](https://aka.ms/debug-in-3d)<!-- todo: 404 --> - blog post.
 
 
 <!-- ====================================================================== -->
@@ -386,7 +386,7 @@ The **3D View** tool in Microsoft Edge DevTools provides a 3-dimensional represe
 
 See also:
 * [Navigate webpage layers, z-index, and DOM using the 3D View tool](../devtools-guide-chromium/3d-view/index.md)<!-- has Video section -->
-* [Debug the web in 3D with the 3D View tool](https://blogs.windows.com/msedgedev/2022/06/21/debug-the-web-in-3d-with-the-3d-view-tool/) - blog post.
+* [Debug the web in 3D with the 3D View tool](https://blogs.windows.com/msedgedev/2022/06/21/debug-the-web-in-3d-with-the-3d-view-tool/)<!-- todo: 404 --> - blog post.
 
 
 <!-- ====================================================================== -->
@@ -433,7 +433,7 @@ June 2024 update: This new element is still experimental.  The `<selectmenu>` el
 
 See also:
 * [Open UI's `<selectlist>` demos](https://microsoftedge.github.io/Demos/selectlist/)
-* [Styling `<select>` elements for real](https://blogs.windows.com/msedgedev/2022/05/05/styling-select-elements-for-real/) - blog post about styling `<select>` elements and the `<selectmenu>` element.
+* [Styling `<select>` elements for real](https://blogs.windows.com/msedgedev/2022/05/05/styling-select-elements-for-real/)<!-- todo: 404 --> - blog post about styling `<select>` elements and the `<selectmenu>` element.
 
 
 <!-- ====================================================================== -->
@@ -573,7 +573,7 @@ March 17, 2022
 
 Microsoft Edge provides auto-generated alt text for images that don't include it. Auto-generated alt text helps users of assistive technology such as screen readers discover the meaning or intent of an images on the web.
 
-Many people who are blind or low-vision experience the web primarily through a screen reader: an assistive technology that reads the content of each page aloud.  Screen readers depend on having image labels (alternative text or "alt text") provided that allows them to describe visual content - like images and charts - so the user can understand the full content of the page.  Alt text is critical for making the web accessible, yet it’s often overlooked.  More than half of the images processed by screen readers are missing alt text. 
+Many people who are blind or low-vision experience the web primarily through a screen reader: an assistive technology that reads the content of each page aloud.  Screen readers depend on having image labels (alternative text or "alt text") provided that allows them to describe visual content - like images and charts - so the user can understand the full content of the page.  Alt text is critical for making the web accessible, yet it's often overlooked.  More than half of the images processed by screen readers are missing alt text. 
 
 See also:
 * [Appears to say: Microsoft Edge now provides auto-generated image labels](https://blogs.windows.com/msedgedev/2022/03/17/appears-to-say-microsoft-edge-auto-generated-image-labels/) - blog post
@@ -768,7 +768,7 @@ Covers:
 * Get involved with PWAs on Windows.
 
 See also:
-* [Overview of Progressive Web Apps (PWAs)](../progressive-web-apps-chromium/index.md)<!-- has Video section -->
+* [Overview of Progressive Web Apps (PWAs)](../progressive-web-apps/index.md)<!-- has Video section -->
 
 
 <!-- ====================================================================== -->
diff --git a/microsoft-edge/develop-web-microsoft-edge.md b/microsoft-edge/develop-web-microsoft-edge.md
index 2b15f78619..f4b09648a2 100644
--- a/microsoft-edge/develop-web-microsoft-edge.md
+++ b/microsoft-edge/develop-web-microsoft-edge.md
@@ -70,7 +70,7 @@ A Microsoft Edge extension is structured similarly to a regular web app, and usu
 *  A JavaScript file that defines the behavior of the browser extension.
 *  HTML and CSS files that define the user interface.
 
-See [Overview of Microsoft Edge extensions](./extensions-chromium/index.md).
+See [Overview of Microsoft Edge extensions](./extensions/index.md).
 
 
 <!-- ====================================================================== -->
@@ -82,7 +82,7 @@ Progressive Web Apps combine the best of the web and compiled apps, to provide u
 
 Progressive Web Apps have a much lower cross-platform development cost than compiled apps that require a specific codebase for each platform, such as a separate codebase for Android, for iOS, and for each desktop operating system.
 
-See [Overview of Progressive Web Apps (PWAs)](./progressive-web-apps-chromium/index.md).
+See [Overview of Progressive Web Apps (PWAs)](./progressive-web-apps/index.md).
 
 
 <!-- ====================================================================== -->
@@ -208,7 +208,7 @@ The full-text search page initially searches all _Microsoft Edge_ documentation.
 To provide feedback or enter issues:
 
 * [Contact the Microsoft Edge DevTools team](./devtools-guide-chromium/contact.md)
-* [Contact the Microsoft Edge extensions team](./extensions-chromium/publish/contact-extensions-team.md)
+* [Contact the Microsoft Edge extensions team](./extensions/contact.md)
 * [Contact the WebView2 team](./webview2/contact.md)
 
 To submit and view feedback for a specific page of the documentation, at the bottom of the page, click the **This page** button.
diff --git a/microsoft-edge/developer/index.yml b/microsoft-edge/developer/index.yml
index f46ac934a1..ba072ae343 100644
--- a/microsoft-edge/developer/index.yml
+++ b/microsoft-edge/developer/index.yml
@@ -101,29 +101,29 @@ landingContent:
       - linkListType: overview
         links:
           - text: Microsoft Edge extensions documentation  # extensions landing page
-            url: ../extensions-chromium/landing/index.yml
+            url: ../extensions/landing/index.yml
 
           - text: Extensions overview
-            url: ../extensions-chromium/index.md
+            url: ../extensions/index.md
 
           - text: Getting started tutorial
-            url: ../extensions-chromium/getting-started/index.md
+            url: ../extensions/getting-started/index.md
 
           - text: Port a Chrome extension to Microsoft Edge
-            url: ../extensions-chromium/developer-guide/port-chrome-extension.md
+            url: ../extensions/developer-guide/port-chrome-extension.md
       - linkListType: how-to-guide
         links:
           - text: Alternative ways to distribute an extension
-            url: ../extensions-chromium/developer-guide/alternate-distribution-options.md
+            url: ../extensions/developer-guide/alternate-distribution-options.md
 
           - text: Step-wise publishing process
-            url: ../extensions-chromium/publish/publish-extension.md
+            url: ../extensions/publish/publish-extension.md
 
           - text: Register as a Microsoft Edge extension developer
-            url: ../extensions-chromium/publish/create-dev-account.md
+            url: ../extensions/publish/create-dev-account.md
 
           - text: "Sample: Picture viewer pop-up webpage"
-            url: ../extensions-chromium/getting-started/picture-viewer-popup-webpage.md
+            url: ../extensions/getting-started/picture-viewer-popup-webpage.md
 
 # =============================================================================
 # Row 2
@@ -134,20 +134,20 @@ landingContent:
       - linkListType: overview
         links:
           - text: Progressive Web Apps (PWAs) documentation  # pwa landing page
-            url: ../progressive-web-apps-chromium/landing/index.yml
+            url: ../progressive-web-apps/landing/index.yml
 
           - text: Overview of Progressive Web Apps
-            url: ../progressive-web-apps-chromium/index.md
+            url: ../progressive-web-apps/index.md
 
       - linkListType: whats-new
         links:
           - text: What's New in PWAs
-            url: ../progressive-web-apps-chromium/whats-new/pwa.md
+            url: ../progressive-web-apps/whats-new/pwa.md
 
       - linkListType: get-started
         links:
           - text: Get started with PWAs
-            url: ../progressive-web-apps-chromium/how-to/index.md
+            url: ../progressive-web-apps/how-to/index.md
 
           - text: Using Service Workers
             url: https://developer.mozilla.org/docs/Web/API/Service_Worker_API/Using_Service_Workers
@@ -158,12 +158,12 @@ landingContent:
       - linkListType: how-to-guide
         links:
           - text: Publish a PWA to the Microsoft Store
-            url: ../progressive-web-apps-chromium/how-to/microsoft-store.md
+            url: ../progressive-web-apps/how-to/microsoft-store.md
 
       - linkListType: concept
         links:
           - text: Store data on the device
-            url: ../progressive-web-apps-chromium/how-to/offline.md
+            url: ../progressive-web-apps/how-to/offline.md
 
 # -----------------------------------------------------------------------------
 # Card for toc bucket 6 - r2c2
diff --git a/microsoft-edge/devtools-guide-chromium/console/copilot-explain-console.md b/microsoft-edge/devtools-guide-chromium/console/copilot-explain-console.md
index 530abac4c5..23f4f86ac5 100644
--- a/microsoft-edge/devtools-guide-chromium/console/copilot-explain-console.md
+++ b/microsoft-edge/devtools-guide-chromium/console/copilot-explain-console.md
@@ -33,7 +33,7 @@ This feature is for use in standard browser windows, and is not available in the
 | Browsing in an InPrivate window | [Browse InPrivate in Microsoft Edge](https://support.microsoft.com/microsoft-edge/browse-inprivate-in-microsoft-edge-cd2c9a48-0bc4-b98e-5e46-ac40c84e27e2) |
 | Browsing with Kids Mode in Microsoft Edge | [Learn more about Kids Mode in Microsoft Edge](https://support.microsoft.com/microsoft-edge/learn-more-about-kids-mode-in-microsoft-edge-4bf0273c-1cbd-47a9-a8f3-895bc1f95bdd) |
 | Using DevTools with a Microsoft Edge WebView2 control | [Debug WebView2 apps with Microsoft Edge DevTools](../../webview2/how-to/debug-devtools.md) |
-| Using DevTools in a standalone Progressive Web App window | [Use a standalone app window](../../progressive-web-apps-chromium/how-to/best-practices.md#use-a-standalone-app-window) in _Best practices for PWAs_ |
+| Using DevTools in a standalone Progressive Web App window | [Use a standalone app window](../../progressive-web-apps/how-to/best-practices.md#use-a-standalone-app-window) in _Best practices for PWAs_ |
 
 
 <!-- ====================================================================== -->
diff --git a/microsoft-edge/devtools-guide-chromium/customize/extensions.md b/microsoft-edge/devtools-guide-chromium/customize/extensions.md
index 53a7eef7bc..15d783219f 100644
--- a/microsoft-edge/devtools-guide-chromium/customize/extensions.md
+++ b/microsoft-edge/devtools-guide-chromium/customize/extensions.md
@@ -52,4 +52,4 @@ To install a Microsoft Edge extension that extends DevTools:
 
 You can create your own DevTools extension to add new tabs in the DevTools **Activity Bar**, and to interact with the inspected page.
 
-See [Create a DevTools extension](../../extensions-chromium/developer-guide/devtools-extension.md).
+See [Create a DevTools extension](../../extensions/developer-guide/devtools-extension.md).
diff --git a/microsoft-edge/devtools-guide-chromium/javascript/background-services.md b/microsoft-edge/devtools-guide-chromium/javascript/background-services.md
index 6071737e21..0875e95075 100644
--- a/microsoft-edge/devtools-guide-chromium/javascript/background-services.md
+++ b/microsoft-edge/devtools-guide-chromium/javascript/background-services.md
@@ -131,7 +131,7 @@ The [Payment Handler API](https://web.dev/web-based-payment-apps-overview/) allo
 <!-- ====================================================================== -->
 ## Periodic Background Sync
 
-The **Periodic Background Sync API** enables the **service worker** of a Progressive Web App to retrieve data from a server, periodically, even when the website isn't opened.  See [Use the Periodic Background Sync API to regularly get fresh content](../../progressive-web-apps-chromium/how-to/background-syncs.md#use-the-periodic-background-sync-api-to-regularly-get-fresh-content) in _Synchronize and update a PWA in the background_.
+The **Periodic Background Sync API** enables the **service worker** of a Progressive Web App to retrieve data from a server, periodically, even when the website isn't opened.  See [Use the Periodic Background Sync API to regularly get fresh content](../../progressive-web-apps/how-to/background-syncs.md#use-the-periodic-background-sync-api-to-regularly-get-fresh-content) in _Synchronize and update a PWA in the background_.
 
 To log Periodic Background Sync events for 3 days, even when DevTools isn't open:
 
diff --git a/microsoft-edge/devtools-guide-chromium/progressive-web-apps/index.md b/microsoft-edge/devtools-guide-chromium/progressive-web-apps/index.md
index 4f6befd445..91a5bdb440 100644
--- a/microsoft-edge/devtools-guide-chromium/progressive-web-apps/index.md
+++ b/microsoft-edge/devtools-guide-chromium/progressive-web-apps/index.md
@@ -42,7 +42,7 @@ The features that are discussed below are features of the **Application** tool a
 * [View and edit local storage](../storage/localstorage.md)
 
 See also:
-* [Overview of Progressive Web Apps (PWAs)](../../progressive-web-apps-chromium/index.md)
+* [Overview of Progressive Web Apps (PWAs)](../../progressive-web-apps/index.md)
 
 
 <!-- ====================================================================== -->
diff --git a/microsoft-edge/devtools-guide-chromium/progressive-web-apps/protocol-handlers.md b/microsoft-edge/devtools-guide-chromium/progressive-web-apps/protocol-handlers.md
index 0130e5b796..fee8103bfe 100644
--- a/microsoft-edge/devtools-guide-chromium/progressive-web-apps/protocol-handlers.md
+++ b/microsoft-edge/devtools-guide-chromium/progressive-web-apps/protocol-handlers.md
@@ -11,7 +11,7 @@ ms.date: 08/23/2022
 
 # Test Progressive Web App (PWA) protocol handling
 
-This article assumes that you have already defined protocol handlers in your PWA web app manifest and are debugging your app with the DevTools. To learn about how to define and register protocols in your PWA, see [Handle protocols in a PWA](../../progressive-web-apps-chromium/how-to/handle-protocols.md).  
+This article assumes that you have already defined protocol handlers in your PWA web app manifest and are debugging your app with the DevTools. To learn about how to define and register protocols in your PWA, see [Handle protocols in a PWA](../../progressive-web-apps/how-to/handle-protocols.md).  
 
 Use the **Application** tool to verify and test that Microsoft Edge has successfully registered your app as a handler for protocols defined in your web app manifest.
 
@@ -45,7 +45,7 @@ The **Protocol Handlers** section also makes it possible to test the protocol ha
 <!-- ====================================================================== -->
 ## Test protocols from the Application tool
 
-To test your protocol handlers from the **Application** tool, you must have already installed your PWA. To learn how to install your PWA, see [Installing a PWA](../../progressive-web-apps-chromium/ux.md#installing-a-pwa).
+To test your protocol handlers from the **Application** tool, you must have already installed your PWA. To learn how to install your PWA, see [Installing a PWA](../../progressive-web-apps/ux.md#installing-a-pwa).
 
 The **Application** tool detects all the protocol handlers from your web app manifest. To test a handler:
 
@@ -63,6 +63,6 @@ In the following screenshot, the `web+amp://files.freemusicarchive.org/storage-f
 ## See also
 
 *  [Debug a Progressive Web App (PWA)](./index.md)
-*  [Handle protocols in a PWA](../../progressive-web-apps-chromium/how-to/handle-protocols.md)
+*  [Handle protocols in a PWA](../../progressive-web-apps/how-to/handle-protocols.md)
 *  [Getting started with Protocol Handlers for your web app](https://blogs.windows.com/msedgedev/2022/01/20/getting-started-url-protocol-handlers-microsoft-edge/)
 *  [URL protocol handler registration for PWAs](https://web.dev/url-protocol-handler/)
diff --git a/microsoft-edge/devtools-guide-chromium/progressive-web-apps/simulate-window-controls-overlay.md b/microsoft-edge/devtools-guide-chromium/progressive-web-apps/simulate-window-controls-overlay.md
index 99a73935bb..a46346424a 100644
--- a/microsoft-edge/devtools-guide-chromium/progressive-web-apps/simulate-window-controls-overlay.md
+++ b/microsoft-edge/devtools-guide-chromium/progressive-web-apps/simulate-window-controls-overlay.md
@@ -18,7 +18,7 @@ In DevTools, in the **Application** tool, you can simulate the Window Controls O
 <!-- ====================================================================== -->
 ## Using the WCO feature in your PWA
 
-In your Progressive Web App (PWA), use the Window Controls Overlay (WCO) to have control over the title bar area that's currently displayed in standalone display mode.  Window Controls Overlay is a set of features that work together to provide just the essential controls needed for the app window.  This layout frees up more space for the web content layer.  See [Display content in the title bar area using Window Controls Overlay](../../progressive-web-apps-chromium/how-to/window-controls-overlay.md).
+In your Progressive Web App (PWA), use the Window Controls Overlay (WCO) to have control over the title bar area that's currently displayed in standalone display mode.  Window Controls Overlay is a set of features that work together to provide just the essential controls needed for the app window.  This layout frees up more space for the web content layer.  See [Display content in the title bar area using Window Controls Overlay](../../progressive-web-apps/how-to/window-controls-overlay.md).
 
 To simulate the WCO feature for Windows, Linux, and macOS in your PWA without having to install the PWA first, use the **Window Controls Overlay** section of the **Application** tool in DevTools.
 
@@ -50,5 +50,5 @@ To simulate the WCO feature for Windows, Linux, and macOS in your PWA without ha
 <!-- ====================================================================== -->
 ## See also
 
-* [Display content in the title bar area using Window Controls Overlay](../../progressive-web-apps-chromium/how-to/window-controls-overlay.md) - the Window Controls Overlay feature for PWAs.
+* [Display content in the title bar area using Window Controls Overlay](../../progressive-web-apps/how-to/window-controls-overlay.md) - the Window Controls Overlay feature for PWAs.
 * [Tooling for PWA Window Controls Overlay](../whats-new/2024/01/devtools-121.md#tooling-for-pwa-window-controls-overlay) in _What's New in DevTools (Microsoft Edge 121)_.
diff --git a/microsoft-edge/devtools-guide-chromium/remote-debugging/surface-duo-emulator.md b/microsoft-edge/devtools-guide-chromium/remote-debugging/surface-duo-emulator.md
index 1586399239..1e2aa0a2fb 100644
--- a/microsoft-edge/devtools-guide-chromium/remote-debugging/surface-duo-emulator.md
+++ b/microsoft-edge/devtools-guide-chromium/remote-debugging/surface-duo-emulator.md
@@ -55,7 +55,7 @@ If the `edge://inspect` page doesn't recognize the [Surface Duo emulator](/dual-
 
 1. Switch back to the desktop instance of [Microsoft Edge](https://www.microsoft.com/edge).
 
-   The `edge://inspect` page now shows the **SurfaceDuoEmulator** with a list of the open tabs or [PWAs](../../progressive-web-apps-chromium/index.md) that are running on the [Surface Duo emulator](/dual-screen/android/use-emulator):
+   The `edge://inspect` page now shows the **SurfaceDuoEmulator** with a list of the open tabs or [PWAs](../../progressive-web-apps/index.md) that are running on the [Surface Duo emulator](/dual-screen/android/use-emulator):
 
    ![The edge://inspect page shows a list of the open tabs in the Microsoft Edge app running on the emulator](./surface-duo-emulator-images/remote-debugging-surface-duo-inspect-page-with-targets.png)
 
diff --git a/microsoft-edge/devtools-guide-chromium/sources/index.md b/microsoft-edge/devtools-guide-chromium/sources/index.md
index 29b6b2aa79..f6b0cdd711 100644
--- a/microsoft-edge/devtools-guide-chromium/sources/index.md
+++ b/microsoft-edge/devtools-guide-chromium/sources/index.md
@@ -245,7 +245,7 @@ When the debugger steps into code that you don't recognize, you might want to ad
 
 See also:
 * [Content scripts](https://developer.mozilla.org/Add-ons/WebExtensions/Content_scripts)
-* [Sample: Picture inserter using content script](../../extensions-chromium/getting-started/picture-inserter-content-script.md)
+* [Sample: Picture inserter using content script](../../extensions/getting-started/picture-inserter-content-script.md)
 
 
 <!-- ------------------------------ -->
diff --git a/microsoft-edge/devtools-guide-chromium/whats-new/2020/03/devtools.md b/microsoft-edge/devtools-guide-chromium/whats-new/2020/03/devtools.md
index 5c77d4828b..d6d90218f0 100644
--- a/microsoft-edge/devtools-guide-chromium/whats-new/2020/03/devtools.md
+++ b/microsoft-edge/devtools-guide-chromium/whats-new/2020/03/devtools.md
@@ -35,7 +35,7 @@ These are the latest features in the Stable release of Microsoft Edge DevTools.
 <!-- ------------------------------ -->
 #### Remotely debug Microsoft Edge on Windows 10 or later Devices
 
-The [Remote Tools for Microsoft Edge](https://apps.microsoft.com/detail/9p6cmfv44zlt) app is now available in the [Microsoft Store](https://apps.microsoft.com). This app extends the [Windows Device Portal](/windows/uwp/debug-test-perf/device-portal).  You can connect from Microsoft Edge running on your development machine to a remote Windows 10 or later device and display a list of targets.  This list of targets includes all tabs in Microsoft Edge and [PWAs](../../../../progressive-web-apps-chromium/index.md) open on the Windows device.  Use DevTools on your development machine against a target running on the remote Windows device.
+The [Remote Tools for Microsoft Edge](https://apps.microsoft.com/detail/9p6cmfv44zlt) app is now available in the [Microsoft Store](https://apps.microsoft.com). This app extends the [Windows Device Portal](/windows/uwp/debug-test-perf/device-portal).  You can connect from Microsoft Edge running on your development machine to a remote Windows 10 or later device and display a list of targets.  This list of targets includes all tabs in Microsoft Edge and [PWAs](../../../../progressive-web-apps/index.md) open on the Windows device.  Use DevTools on your development machine against a target running on the remote Windows device.
 
 ![The Remote Tools for Microsoft Edge app available in the Microsoft Store](./devtools-images/remote-tools.png)
 
@@ -290,7 +290,7 @@ Chromium issue [#1054447](https://crbug.com/1054447)
 
 There's a new checkbox, **Show only the minimum safe area for maskable icons**, in the **Manifest** pane of the **Application** tool.
 
-Android Oreo introduced adaptive icons, which display app icons in a variety of shapes across different device models.  **Maskable icons** are a new icon format that support adaptive icons, which enable you to ensure that your [PWA](../../../../progressive-web-apps-chromium/index.md) icon looks good on devices that support the maskable icons standard.
+Android Oreo introduced adaptive icons, which display app icons in a variety of shapes across different device models.  **Maskable icons** are a new icon format that support adaptive icons, which enable you to ensure that your [PWA](../../../../progressive-web-apps/index.md) icon looks good on devices that support the maskable icons standard.
 
 To check that your maskable icon looks good on Android Oreo devices, in the **Manifest** pane of the **Application** tool, select the new checkbox **Show only the minimum safe area for maskable icons**:
 
diff --git a/microsoft-edge/devtools-guide-chromium/whats-new/2020/05/devtools.md b/microsoft-edge/devtools-guide-chromium/whats-new/2020/05/devtools.md
index 11275549cf..db6e2c5a13 100644
--- a/microsoft-edge/devtools-guide-chromium/whats-new/2020/05/devtools.md
+++ b/microsoft-edge/devtools-guide-chromium/whats-new/2020/05/devtools.md
@@ -87,7 +87,7 @@ With the Surface Duo emulator, you can test how your web content renders on a ne
 
 ![The Microsoft Edge app running on the Surface Duo emulator](./devtools-images/surface-duo-emulator.png)
 
-The `edge://inspect` page in a desktop instance of Microsoft Edge shows the **SurfaceDuoEmulator** with a list of the open tabs or [PWAs](../../../../progressive-web-apps-chromium/index.md) that are running on the Surface Duo emulator:
+The `edge://inspect` page in a desktop instance of Microsoft Edge shows the **SurfaceDuoEmulator** with a list of the open tabs or [PWAs](../../../../progressive-web-apps/index.md) that are running on the Surface Duo emulator:
 
 ![The edge://inspect page displays a list of the open tabs in the Microsoft Edge app running on the emulator](./devtools-images/edge-inspect.png)
 
@@ -310,7 +310,7 @@ In the **Application** tool, the **Manifest** page now shows app shortcuts.  App
 ![App shortcuts in the Manifest pane of the Application tool](./devtools-images/app-shortcuts.png)
 
 See also:
-* [Overview of Progressive Web Apps (PWAs)](../../../../progressive-web-apps-chromium/index.md)
+* [Overview of Progressive Web Apps (PWAs)](../../../../progressive-web-apps/index.md)
 * [Debug a Progressive Web App (PWA)](../../../progressive-web-apps/index.md)
 
 
diff --git a/microsoft-edge/devtools-guide-chromium/whats-new/2020/11/devtools.md b/microsoft-edge/devtools-guide-chromium/whats-new/2020/11/devtools.md
index d18b0558db..684ad1a20f 100644
--- a/microsoft-edge/devtools-guide-chromium/whats-new/2020/11/devtools.md
+++ b/microsoft-edge/devtools-guide-chromium/whats-new/2020/11/devtools.md
@@ -117,7 +117,7 @@ See also:
 <!-- Title:  Service worker debugging improvements in the Network, Application, and Sources tools  -->
 <!-- Subtitle:  Making service workers easier to debug for progressive web applications and more.  -->
 
-The following new features in the **Network** tool, **Application** tool, and **Sources** tool help you build your [PWA](../../../../progressive-web-apps-chromium/index.md).  Use the following features when you have difficulty debugging your service worker.
+The following new features in the **Network** tool, **Application** tool, and **Sources** tool help you build your [PWA](../../../../progressive-web-apps/index.md).  Use the following features when you have difficulty debugging your service worker.
 
 The routing of a request displays the `startup` and `fetch` events based on the network requests that run through service workers.  The timelines are accessed from either the **Application** or **Network** tool.  The timelines help when you are having trouble with service workers and want to see if something is wrong with the `startup` or `fetch` event.
 
diff --git a/microsoft-edge/devtools-guide-chromium/whats-new/2021/02/devtools.md b/microsoft-edge/devtools-guide-chromium/whats-new/2021/02/devtools.md
index 1010b27c3f..b29ef28af2 100644
--- a/microsoft-edge/devtools-guide-chromium/whats-new/2021/02/devtools.md
+++ b/microsoft-edge/devtools-guide-chromium/whats-new/2021/02/devtools.md
@@ -238,7 +238,7 @@ The **Console** now displays a more detailed installability warning message for
 ![PWA installability warning in Console tool](./devtools-images/console-pwa-installability.png)
 
 See also:
-* [Overview of Progressive Web Apps (PWAs)](../../../../progressive-web-apps-chromium/index.md)
+* [Overview of Progressive Web Apps (PWAs)](../../../../progressive-web-apps/index.md)
 
 
 <!-- ---------- -->
diff --git a/microsoft-edge/devtools-guide-chromium/whats-new/2022/09/devtools-105.md b/microsoft-edge/devtools-guide-chromium/whats-new/2022/09/devtools-105.md
index 063974a8cb..d06b942d49 100644
--- a/microsoft-edge/devtools-guide-chromium/whats-new/2022/09/devtools-105.md
+++ b/microsoft-edge/devtools-guide-chromium/whats-new/2022/09/devtools-105.md
@@ -42,7 +42,7 @@ The **Application** tool will attempt to launch your PWA with the protocol and U
 See also:
 
 * [Test Progressive Web App (PWA) protocol handling](../../../progressive-web-apps/protocol-handlers.md)
-* [Handle protocols in a PWA](../../../../progressive-web-apps-chromium/how-to/handle-protocols.md)
+* [Handle protocols in a PWA](../../../../progressive-web-apps/how-to/handle-protocols.md)
 
 
 <!-- ====================================================================== -->
diff --git a/microsoft-edge/devtools-guide-chromium/whats-new/2024/01/devtools-121.md b/microsoft-edge/devtools-guide-chromium/whats-new/2024/01/devtools-121.md
index 1a02c14434..528918d8c7 100644
--- a/microsoft-edge/devtools-guide-chromium/whats-new/2024/01/devtools-121.md
+++ b/microsoft-edge/devtools-guide-chromium/whats-new/2024/01/devtools-121.md
@@ -97,7 +97,7 @@ Use the **Window Controls Overlay** section to emulate window controls for Windo
 
 See also:
 * [Simulate the Window Controls Overlay API without installing your PWA](../../../progressive-web-apps/simulate-window-controls-overlay.md)
-* [Display content in the title bar area using Window Controls Overlay](../../../../progressive-web-apps-chromium/how-to/window-controls-overlay.md)
+* [Display content in the title bar area using Window Controls Overlay](../../../../progressive-web-apps/how-to/window-controls-overlay.md)
 * [Application tool, to manage storage](../../../storage/application-tool.md)
 
 
diff --git a/microsoft-edge/extensions-chromium/publish/contact-extensions-team.md b/microsoft-edge/extensions/contact.md
similarity index 92%
rename from microsoft-edge/extensions-chromium/publish/contact-extensions-team.md
rename to microsoft-edge/extensions/contact.md
index 1857ac1d5d..dbb879405b 100644
--- a/microsoft-edge/extensions-chromium/publish/contact-extensions-team.md
+++ b/microsoft-edge/extensions/contact.md
@@ -16,7 +16,7 @@ You can contact the Microsoft Edge extensions support team to request help, subm
 <!-- ====================================================================== -->
 ## Issues page in the MicrosoftEdge-Extensions repo
 <!-- sync:
-https://learn.microsoft.com/microsoft-edge/extensions-chromium/publish/contact-extensions-team#issues-page-in-the-microsoftedge-extensions-repo
+https://learn.microsoft.com/microsoft-edge/extensions/publish/contact-extensions-team#issues-page-in-the-microsoftedge-extensions-repo
 https://github.com/microsoft/MicrosoftEdge-Extensions/blob/main/README.md#issues
 -->
 
@@ -41,7 +41,7 @@ See also:
 <!-- ====================================================================== -->
 ## Discussion forum in the MicrosoftEdge-Extensions repo
 <!-- sync:
-https://learn.microsoft.com/microsoft-edge/extensions-chromium/publish/contact-extensions-team#discussion-forum-in-the-microsoftedge-extensions-repo
+https://learn.microsoft.com/microsoft-edge/extensions/publish/contact-extensions-team#discussion-forum-in-the-microsoftedge-extensions-repo
 https://github.com/microsoft/MicrosoftEdge-Extensions/blob/main/README.md#discussions
 -->
 
@@ -92,6 +92,6 @@ For news and updates about developing for the web with Microsoft Edge, follow th
 <!-- ====================================================================== -->
 ## See also
 
-* [Publish a Microsoft Edge extension](./publish-extension.md)
+* [Publish a Microsoft Edge extension](./publish/publish-extension.md)
 * [README.md](https://github.com/microsoft/MicrosoftEdge-Extensions/blob/main/README.md) of the **MicrosoftEdge-Extensions** repo.
-* [Communicating on GitHub](https://docs.github.com/en/get-started/using-github/communicating-on-github) - When to use **Issues** vs. **Discussions**.
+* [Communicating on GitHub](https://docs.github.com/en/get-started/using-github/communicating-on-github) - When to use the **Issues** vs. **Discussions** page of a repo.
diff --git a/microsoft-edge/extensions-chromium/developer-guide/alternate-distribution-options.md b/microsoft-edge/extensions/developer-guide/alternate-distribution-options.md
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similarity index 100%
rename from microsoft-edge/extensions-chromium/developer-guide/devtools-extension-images/solution-sample-panel.png
rename to microsoft-edge/extensions/developer-guide/devtools-extension-images/solution-sample-panel.png
diff --git a/microsoft-edge/extensions-chromium/developer-guide/devtools-extension.md b/microsoft-edge/extensions/developer-guide/devtools-extension.md
similarity index 100%
rename from microsoft-edge/extensions-chromium/developer-guide/devtools-extension.md
rename to microsoft-edge/extensions/developer-guide/devtools-extension.md
diff --git a/microsoft-edge/extensions-chromium/developer-guide/manifest-v3.md b/microsoft-edge/extensions/developer-guide/manifest-v3.md
similarity index 98%
rename from microsoft-edge/extensions-chromium/developer-guide/manifest-v3.md
rename to microsoft-edge/extensions/developer-guide/manifest-v3.md
index 94f53b57a9..7b1221c9cd 100644
--- a/microsoft-edge/extensions-chromium/developer-guide/manifest-v3.md
+++ b/microsoft-edge/extensions/developer-guide/manifest-v3.md
@@ -63,7 +63,7 @@ The Microsoft Edge team will independently decide on MV3 migration timelines for
 Manifest V2 extensions will continue to be supported through Enterprise policies at least until the date in the Chromium Manifest V2 support timeline.
 
 Microsoft continues to iteratively improve the platform and address the feedback shared by extension developers.  Share your questions, comments, and concerns:
-* [Contact the Microsoft Edge extensions team](../publish/contact-extensions-team.md)
+* [Contact the Microsoft Edge extensions team](../contact.md)
 * [Microsoft Edge Insider](https://techcommunity.microsoft.com/t5/microsoft-edge-insider/ct-p/MicrosoftEdgeInsider) - forum about Microsoft Edge at Microsoft Tech Community.
 * [@MSEdgeDev](https://twitter.com/msedgedev/) - Microsoft Edge team on X (Twitter).
 
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diff --git a/microsoft-edge/extensions-chromium/index-images/featured-badge.png b/microsoft-edge/extensions/index-images/featured-badge.png
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diff --git a/microsoft-edge/extensions-chromium/index.md b/microsoft-edge/extensions/index.md
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diff --git a/microsoft-edge/extensions-chromium/landing/index.yml b/microsoft-edge/extensions/landing/index.yml
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rename from microsoft-edge/extensions-chromium/landing/index.yml
rename to microsoft-edge/extensions/landing/index.yml
index 58dbdcad71..a24a3b1680 100644
--- a/microsoft-edge/extensions-chromium/landing/index.yml
+++ b/microsoft-edge/extensions/landing/index.yml
@@ -67,7 +67,7 @@ landingContent:
             url: ../whats-new/roadmap.md
 
           - text: Contact the Microsoft Edge extensions team
-            url: ../publish/contact-extensions-team.md
+            url: ../contact.md
 
 # -----------------------------------------------------------------------------
 # Card r1c2
diff --git a/microsoft-edge/extensions-chromium/publish/aad-account.md b/microsoft-edge/extensions/publish/aad-account.md
similarity index 99%
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rename to microsoft-edge/extensions/publish/aad-account.md
index 1b0418c708..7de96b0b34 100644
--- a/microsoft-edge/extensions-chromium/publish/aad-account.md
+++ b/microsoft-edge/extensions/publish/aad-account.md
@@ -110,7 +110,7 @@ For more information about adding users, see [Users, groups, and applications in
 <!-- ====================================================================== -->
 ## Contact us
 
-If you need help or assistance with associating your Microsoft Entra ID account or other related queries, [Contact the Microsoft Edge extensions team](contact-extensions-team.md).
+If you need help or assistance with associating your Microsoft Entra ID account or other related queries, [Contact the Microsoft Edge extensions team](../contact.md).
 
 
 <!-- ====================================================================== -->
diff --git a/microsoft-edge/extensions-chromium/publish/add-ons-curation.md b/microsoft-edge/extensions/publish/add-ons-curation.md
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diff --git a/microsoft-edge/extensions-chromium/publish/extensions-analytics-images/extensions-analytics-weekly-users.png b/microsoft-edge/extensions/publish/extensions-analytics-images/extensions-analytics-weekly-users.png
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diff --git a/microsoft-edge/extensions-chromium/publish/extensions-analytics.md b/microsoft-edge/extensions/publish/extensions-analytics.md
similarity index 100%
rename from microsoft-edge/extensions-chromium/publish/extensions-analytics.md
rename to microsoft-edge/extensions/publish/extensions-analytics.md
diff --git a/microsoft-edge/extensions-chromium/publish/github.md b/microsoft-edge/extensions/publish/github.md
similarity index 99%
rename from microsoft-edge/extensions-chromium/publish/github.md
rename to microsoft-edge/extensions/publish/github.md
index 12e9b3901a..bd6a5cfb2c 100644
--- a/microsoft-edge/extensions-chromium/publish/github.md
+++ b/microsoft-edge/extensions/publish/github.md
@@ -54,7 +54,7 @@ After you're registered for the Microsoft Edge program, you can port your Chrome
 <!-- ====================================================================== -->
 ## Contact us
 
-Let us know if this article was helpful or if you have any feedback.  For help with signing into Partner Center using GitHub or other related questions, see [Contact the Microsoft Edge extensions team](contact-extensions-team.md).
+Let us know if this article was helpful or if you have any feedback.  For help with signing into Partner Center using GitHub or other related questions, see [Contact the Microsoft Edge extensions team](../contact.md).
 
 
 <!-- ====================================================================== -->
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diff --git a/microsoft-edge/extensions-chromium/publish/verify-microsoft-edge-program-images/account-settings-legal-info-microsoft-edge-partner-center.png b/microsoft-edge/extensions/publish/verify-microsoft-edge-program-images/account-settings-legal-info-microsoft-edge-partner-center.png
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diff --git a/microsoft-edge/extensions-chromium/publish/verify-microsoft-edge-program-images/status-icon.png b/microsoft-edge/extensions/publish/verify-microsoft-edge-program-images/status-icon.png
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diff --git a/microsoft-edge/extensions-chromium/publish/verify-microsoft-edge-program.md b/microsoft-edge/extensions/publish/verify-microsoft-edge-program.md
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index 002bb9bd3a..62f92a7786 100644
--- a/microsoft-edge/extensions-chromium/publish/verify-microsoft-edge-program.md
+++ b/microsoft-edge/extensions/publish/verify-microsoft-edge-program.md
@@ -18,7 +18,7 @@ You can go to [Legal info](https://partner.microsoft.com/dashboard/account/v3/or
 
 When account verification is complete, you can use your Partner Center dashboard to publish your extension at [Microsoft Edge Add-ons](https://microsoftedge.microsoft.com/addons/).
 
-Verification usually takes three to five business days.  If more than five days have passed, you can [Contact the Microsoft Edge extensions team](./contact-extensions-team.md) for help.
+Verification usually takes three to five business days.  If more than five days have passed, you can [Contact the Microsoft Edge extensions team](../contact.md) for help.
 
 
 <!-- ====================================================================== -->
diff --git a/microsoft-edge/extensions-chromium/samples.md b/microsoft-edge/extensions/samples.md
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diff --git a/microsoft-edge/extensions-chromium/update/update-extension.md b/microsoft-edge/extensions/update/update-extension.md
similarity index 100%
rename from microsoft-edge/extensions-chromium/update/update-extension.md
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diff --git a/microsoft-edge/extensions-chromium/whats-new/released-features.md b/microsoft-edge/extensions/whats-new/released-features.md
similarity index 100%
rename from microsoft-edge/extensions-chromium/whats-new/released-features.md
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diff --git a/microsoft-edge/extensions-chromium/whats-new/roadmap.md b/microsoft-edge/extensions/whats-new/roadmap.md
similarity index 100%
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diff --git a/microsoft-edge/index.yml b/microsoft-edge/index.yml
index 416e7686c8..a4bb8452a5 100644
--- a/microsoft-edge/index.yml
+++ b/microsoft-edge/index.yml
@@ -174,12 +174,12 @@ conceptualContent:
               url: /deployedge/microsoft-edge-manage-extensions
 
             - itemType: reference
-              text: Defining match patterns to access file URLs
-              url: ./extensions-chromium/enterprise/match-patterns.md
+              text: Defining match patterns for an extension to access file URLs
+              url: ./extensions/developer-guide/match-patterns.md
 
             - itemType: reference
               text: Extension hosting
-              url: ./extensions-chromium/enterprise/hosting-and-updating.md
+              url: ./extensions/publish/hosting-and-updating.md
 
 # -----------------------------------------------------------------------------
 # Card r2c4
@@ -254,35 +254,35 @@ conceptualContent:
         - title: Microsoft Edge extensions
           links:
             - text: Microsoft Edge extensions documentation  # extensions landing page
-              url: ./extensions-chromium/landing/index.yml
+              url: ./extensions/landing/index.yml
               itemType: overview
 
             - text: Extensions overview
-              url: ./extensions-chromium/index.md
+              url: ./extensions/index.md
               itemType: overview
 
             - text: Getting started tutorial
-              url: ./extensions-chromium/getting-started/index.md
+              url: ./extensions/getting-started/index.md
               itemType: overview
 
             - text: Port a Chrome extension to Microsoft Edge
-              url: ./extensions-chromium/developer-guide/port-chrome-extension.md
+              url: ./extensions/developer-guide/port-chrome-extension.md
               itemType: overview
 
             - text: Alternative ways to distribute an extension
-              url: ./extensions-chromium/developer-guide/alternate-distribution-options.md
+              url: ./extensions/developer-guide/alternate-distribution-options.md
               itemType: how-to-guide
 
             - text: Step-wise publishing process
-              url: ./extensions-chromium/publish/publish-extension.md
+              url: ./extensions/publish/publish-extension.md
               itemType: how-to-guide
 
             - text: Register as a Microsoft Edge extension developer
-              url: ./extensions-chromium/publish/create-dev-account.md
+              url: ./extensions/publish/create-dev-account.md
               itemType: how-to-guide
 
             - text: "Sample: Picture viewer pop-up webpage"
-              url: ./extensions-chromium/getting-started/picture-viewer-popup-webpage.md
+              url: ./extensions/getting-started/picture-viewer-popup-webpage.md
               itemType: how-to-guide
 
 # -----------------------------------------------------------------------------
@@ -290,19 +290,19 @@ conceptualContent:
         - title: Progressive Web Apps (PWAs)
           links:
             - text: Progressive Web Apps (PWAs) documentation  # pwa landing page
-              url: ./progressive-web-apps-chromium/landing/index.yml
+              url: ./progressive-web-apps/landing/index.yml
               itemType: overview
 
             - text: Overview of Progressive Web Apps
-              url: ./progressive-web-apps-chromium/index.md
+              url: ./progressive-web-apps/index.md
               itemType: overview
 
             - text: What's New in PWAs
-              url: ./progressive-web-apps-chromium/whats-new/pwa.md
+              url: ./progressive-web-apps/whats-new/pwa.md
               itemType: whats-new
 
             - text: Get started with PWAs
-              url: ./progressive-web-apps-chromium/how-to/index.md
+              url: ./progressive-web-apps/how-to/index.md
               itemType: get-started
 
             - text: Using Service Workers
@@ -314,11 +314,11 @@ conceptualContent:
               itemType: get-started
 
             - text: Publish a PWA to the Microsoft Store
-              url: ./progressive-web-apps-chromium/how-to/microsoft-store.md
+              url: ./progressive-web-apps/how-to/microsoft-store.md
               itemType: how-to-guide
 
             - text: Store data on the device
-              url: ./progressive-web-apps-chromium/how-to/offline.md
+              url: ./progressive-web-apps/how-to/offline.md
               itemType: how-to-guide
 
 # =============================================================================
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diff --git a/microsoft-edge/progressive-web-apps-chromium/whats-new/pwa-images/edgeapps-details.jpg b/microsoft-edge/progressive-web-apps/whats-new/pwa-images/edgeapps-details.jpg
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diff --git a/microsoft-edge/progressive-web-apps-chromium/whats-new/pwa-images/edgeapps-redesign.jpg b/microsoft-edge/progressive-web-apps/whats-new/pwa-images/edgeapps-redesign.jpg
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diff --git a/microsoft-edge/progressive-web-apps-chromium/whats-new/pwa.md b/microsoft-edge/progressive-web-apps/whats-new/pwa.md
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diff --git a/microsoft-edge/toc.yml b/microsoft-edge/toc.yml
index 3850b22cfa..21265c9dbe 100644
--- a/microsoft-edge/toc.yml
+++ b/microsoft-edge/toc.yml
@@ -1073,41 +1073,41 @@
     - name: Microsoft Edge extensions
       items:
         - name: Microsoft Edge extensions documentation
-          href: ./extensions-chromium/landing/index.yml  # landing page
+          href: ./extensions/landing/index.yml  # landing page
           displayName: add-ons, landing
 
         - name: Overview of Microsoft Edge extensions
-          href: ./extensions-chromium/index.md
+          href: ./extensions/index.md
 
 # -------------------------------------
         - name: What's new
           items:
             - name: Released features for Microsoft Edge extensions
-              href: ./extensions-chromium/whats-new/released-features.md
+              href: ./extensions/whats-new/released-features.md
 
             - name: Roadmap for Microsoft Edge extensions
-              href: ./extensions-chromium/whats-new/roadmap.md
+              href: ./extensions/whats-new/roadmap.md
 
 # -------------------------------------
         - name: Get started
           items:
             - name: Extension concepts and architecture
-              href: ./extensions-chromium/getting-started/index.md
+              href: ./extensions/getting-started/index.md
 
             - name: "Sample: Picture viewer pop-up webpage"
-              href: ./extensions-chromium/getting-started/picture-viewer-popup-webpage.md
+              href: ./extensions/getting-started/picture-viewer-popup-webpage.md
 
             - name: "Sample: Picture inserter using content script"
-              href: ./extensions-chromium/getting-started/picture-inserter-content-script.md
+              href: ./extensions/getting-started/picture-inserter-content-script.md
 
             - name: Sideload an extension to install and test it locally
-              href: ./extensions-chromium/getting-started/extension-sideloading.md
+              href: ./extensions/getting-started/extension-sideloading.md
 
 # -------------------------------------
         - name: Port an extension to Microsoft Edge
           items:
             - name: Port a Chrome extension to Microsoft Edge
-              href: ./extensions-chromium/developer-guide/port-chrome-extension.md
+              href: ./extensions/developer-guide/port-chrome-extension.md
 
 # -------------------------------------
         - name: Develop an extension
@@ -1115,41 +1115,41 @@
             - name: Manifest files
               items:
                 - name: Manifest file format for extensions
-                  href: ./extensions-chromium/getting-started/manifest-format.md
+                  href: ./extensions/getting-started/manifest-format.md
 
                 - name: Using Content Security Policy (CSP) to control which resources can be run
-                  href: ./extensions-chromium/developer-guide/csp.md
+                  href: ./extensions/developer-guide/csp.md
                   displayName: policies
 
                 - name: Overview and timelines for migrating to Manifest V3
-                  href: ./extensions-chromium/developer-guide/manifest-v3.md
+                  href: ./extensions/developer-guide/manifest-v3.md
 
                 - name: Migrate an extension from Manifest V2 to V3
-                  href: ./extensions-chromium/developer-guide/migrate-your-extension-from-manifest-v2-to-v3.md
+                  href: ./extensions/developer-guide/migrate-your-extension-from-manifest-v2-to-v3.md
 
             - name: JavaScript APIs
               items:
                 - name: Supported APIs for Microsoft Edge extensions
-                  href: ./extensions-chromium/developer-guide/api-support.md
+                  href: ./extensions/developer-guide/api-support.md
 
                 - name: Declare API permissions in the manifest
-                  href: ./extensions-chromium/developer-guide/declare-permissions.md
+                  href: ./extensions/developer-guide/declare-permissions.md
 
             - name: Create a DevTools extension, adding a custom tool tab and panel
-              href: ./extensions-chromium/developer-guide/devtools-extension.md
+              href: ./extensions/developer-guide/devtools-extension.md
 
             - name: Develop an extension for the Microsoft Edge sidebar
-              href: ./extensions-chromium/developer-guide/sidebar.md
+              href: ./extensions/developer-guide/sidebar.md
               displayName: sidebar extensions, sidepanel, side panel
 
             - name: Native messaging
-              href: ./extensions-chromium/developer-guide/native-messaging.md
+              href: ./extensions/developer-guide/native-messaging.md
 
             - name: Run compiled code in an extension
-              href: extensions-chromium/developer-guide/run-compiled-code.md
+              href: ./extensions/developer-guide/run-compiled-code.md
 
             - name: Defining match patterns for an extension to access file URLs
-              href: ./extensions-chromium/developer-guide/match-patterns.md
+              href: ./extensions/developer-guide/match-patterns.md
 
             - name: Policies for extensions
               items:
@@ -1165,87 +1165,87 @@
         - name: Register as an extension developer
           items:
             - name: Register as a Microsoft Edge extension developer
-              href: ./extensions-chromium/publish/create-dev-account.md
+              href: ./extensions/publish/create-dev-account.md
 
             - name: Register as an enterprise developer
               items:
                 - name: Verify your company account information
-                  href: ./extensions-chromium/publish/verify-microsoft-edge-program.md
+                  href: ./extensions/publish/verify-microsoft-edge-program.md
 
                 - name: Add users to the Microsoft Edge program
-                  href: ./extensions-chromium/publish/aad-account.md
+                  href: ./extensions/publish/aad-account.md
 
             - name: Register and sign in to Partner Center using a GitHub account
-              href: ./extensions-chromium/publish/github.md
+              href: ./extensions/publish/github.md
 
             - name: Manage account settings
-              href: ./extensions-chromium/publish/manage-settings.md
+              href: ./extensions/publish/manage-settings.md
 
 # -------------------------------------
         - name: Publish an extension
           items:
             - name: Publish a Microsoft Edge extension
-              href: ./extensions-chromium/publish/publish-extension.md
+              href: ./extensions/publish/publish-extension.md
 
             - name: Extension hosting
-              href: ./extensions-chromium/publish/hosting-and-updating.md
+              href: ./extensions/publish/hosting-and-updating.md
 
             - name: Submission states for extensions at Microsoft Edge Add-ons
-              href: ./extensions-chromium/publish/submission-states.md
+              href: ./extensions/publish/submission-states.md
 
             - name: Alternative ways to distribute an extension
-              href: ./extensions-chromium/developer-guide/alternate-distribution-options.md
+              href: ./extensions/developer-guide/alternate-distribution-options.md
 
             - name: Curation and review process for extensions at Microsoft Edge Add-ons
-              href: ./extensions-chromium/publish/add-ons-curation.md
+              href: ./extensions/publish/add-ons-curation.md
 
 # -------------------------------------
         - name: Update an extension
           items:
             - name: Update a Microsoft Edge extension
-              href: ./extensions-chromium/update/update-extension.md
+              href: ./extensions/update/update-extension.md
 
             - name: REST API for updating an extension
               items:
                 - name: Use the REST API to update an extension at Microsoft Edge Add-ons
-                  href: ./extensions-chromium/update/api/using-addons-api.md
+                  href: ./extensions/update/api/using-addons-api.md
 
                 - name: REST API Reference for updating an extension at Microsoft Edge Add-ons
-                  href: ./extensions-chromium/update/api/addons-api-reference.md
+                  href: ./extensions/update/api/addons-api-reference.md
 
             - name: Set an externally installed extension to automatically update
-              href: ./extensions-chromium/update/auto-update.md
+              href: ./extensions/update/auto-update.md
 
             - name: Transfer ownership of an extension
-              href: ./extensions-chromium/update/transfer-ownership.md
+              href: ./extensions/update/transfer-ownership.md
 
 # -------------------------------------
         - name: Analytics and user reviews
           items:
             - name: View Microsoft Edge extensions analytics dashboard
-              href: ./extensions-chromium/publish/extensions-analytics.md
+              href: ./extensions/publish/extensions-analytics.md
 
             - name: Reply to user reviews of an extension
-              href: ./extensions-chromium/publish/reply-user-reviews.md
+              href: ./extensions/publish/reply-user-reviews.md
               displayName: Respond to user reviews
 
 # -------------------------------------
         - name: Best practices
           items:
             - name: Best practices for extensions
-              href: ./extensions-chromium/developer-guide/best-practices.md
+              href: ./extensions/developer-guide/best-practices.md
             - name: Minimize an extension's impact on page load time
-              href: ./extensions-chromium/developer-guide/minimize-page-load-time-impact.md
+              href: ./extensions/developer-guide/minimize-page-load-time-impact.md
 
 # -------------------------------------
         - name: Samples
           items:
             - name: Samples for Microsoft Edge extensions
-              href: ./extensions-chromium/samples.md
+              href: ./extensions/samples.md
 
 # -------------------------------------
         - name: Contact the Microsoft Edge extensions team
-          href: ./extensions-chromium/publish/contact-extensions-team.md
+          href: ./extensions/contact.md
           displayName: feedback, log issues, enter issues, report issues, reporting issues
 # /Microsoft Edge extensions
 # =============================================================================
@@ -1253,89 +1253,89 @@
     - name: Progressive Web Apps
       items:
         - name: Progressive Web Apps (PWAs) documentation
-          href: ./progressive-web-apps-chromium/landing/index.yml
+          href: ./progressive-web-apps/landing/index.yml
           displayName: landing
 
         - name: Overview and getting started
           items:
             - name: Overview of Progressive Web Apps (PWAs)
-              href: ./progressive-web-apps-chromium/index.md
+              href: ./progressive-web-apps/index.md
 
             - name: What's New in PWAs
-              href: ./progressive-web-apps-chromium/whats-new/pwa.md
+              href: ./progressive-web-apps/whats-new/pwa.md
               displayName: release notes, announcements
 
             - name: Get started with PWAs
-              href: ./progressive-web-apps-chromium/how-to/index.md
+              href: ./progressive-web-apps/how-to/index.md
 
             - name: Use PWAs in Microsoft Edge
-              href: ./progressive-web-apps-chromium/ux.md
+              href: ./progressive-web-apps/ux.md
 
         - name: Integrate a PWA into Windows
           items:
             - name: Display content in the title bar area using Window Controls Overlay  # todo: add "Share dialog" to title
-              href: ./progressive-web-apps-chromium/how-to/window-controls-overlay.md
+              href: ./progressive-web-apps/how-to/window-controls-overlay.md
 
             - name: Share content with other apps  # todo: add "jump lists" to title
-              href: ./progressive-web-apps-chromium/how-to/share.md
+              href: ./progressive-web-apps/how-to/share.md
 
             - name: Define app shortcuts (long-press or right-click menus)
-              href: ./progressive-web-apps-chromium/how-to/shortcuts.md
+              href: ./progressive-web-apps/how-to/shortcuts.md
 
             - name: Display a PWA widget in the Windows Widgets Board
-              href: ./progressive-web-apps-chromium/how-to/widgets.md
+              href: ./progressive-web-apps/how-to/widgets.md
 
             - name: Build a PWA for the sidebar in Microsoft Edge
-              href: ./progressive-web-apps-chromium/how-to/sidebar.md
+              href: ./progressive-web-apps/how-to/sidebar.md
 
             - name: Enable App Actions on Windows for a PWA
-              href: ./progressive-web-apps-chromium/how-to/app-actions.md
+              href: ./progressive-web-apps/how-to/app-actions.md
 
         - name: Distribute a PWA with the Microsoft Store
           items:
             - name: Publish a PWA to the Microsoft Store
-              href: ./progressive-web-apps-chromium/how-to/microsoft-store.md
+              href: ./progressive-web-apps/how-to/microsoft-store.md
 
             - name: Provide in-app purchases with the Digital Goods API
-              href: ./progressive-web-apps-chromium/how-to/digital-goods-api.md
+              href: ./progressive-web-apps/how-to/digital-goods-api.md
 
         - name: Update a PWA, show badges, notifications, push messages
           items:
             - name: Synchronize and update a PWA in the background
-              href: ./progressive-web-apps-chromium/how-to/background-syncs.md
+              href: ./progressive-web-apps/how-to/background-syncs.md
 
             - name: Re-engage users with badges and notifications
-              href: ./progressive-web-apps-chromium/how-to/notifications-badges.md
+              href: ./progressive-web-apps/how-to/notifications-badges.md
 
             - name: Re-engage users with push messages
-              href: ./progressive-web-apps-chromium/how-to/push.md
+              href: ./progressive-web-apps/how-to/push.md
 
         - name: Handle files, links, and protocols
           items:
             - name: Handle files in a PWA
-              href: ./progressive-web-apps-chromium/how-to/handle-files.md
+              href: ./progressive-web-apps/how-to/handle-files.md
 
             - name: Handle links to a PWA
-              href: ./progressive-web-apps-chromium/how-to/handle-urls.md
+              href: ./progressive-web-apps/how-to/handle-urls.md
               displayName: handle urls
 
             - name: Handle protocols in a PWA
-              href: ./progressive-web-apps-chromium/how-to/handle-protocols.md
+              href: ./progressive-web-apps/how-to/handle-protocols.md
 
         - name: Define icons and a theme color
-          href: ./progressive-web-apps-chromium/how-to/icon-theme-color.md
+          href: ./progressive-web-apps/how-to/icon-theme-color.md
 
         - name: Store data on the device
-          href: ./progressive-web-apps-chromium/how-to/offline.md
+          href: ./progressive-web-apps/how-to/offline.md
 
         - name: Best practices for PWAs
-          href: ./progressive-web-apps-chromium/how-to/best-practices.md
+          href: ./progressive-web-apps/how-to/best-practices.md
 
         - name: Debug a PWA
-          href: ./progressive-web-apps-chromium/how-to/debug.md
+          href: ./progressive-web-apps/how-to/debug.md
 
         - name: Progressive Web App demos
-          href: ./progressive-web-apps-chromium/demo-pwas.md
+          href: ./progressive-web-apps/demo-pwas.md
 # /Progressive Web Apps
 # =============================================================================
 # WebView2
diff --git a/microsoft-edge/web-platform/release-notes/138.md b/microsoft-edge/web-platform/release-notes/138.md
index 7baa5a7a98..2d198350ff 100644
--- a/microsoft-edge/web-platform/release-notes/138.md
+++ b/microsoft-edge/web-platform/release-notes/138.md
@@ -346,7 +346,7 @@ The `scope_extensions` field requires listed origins to confirm association with
 ```
 
 See also:
-* [Handle links from other origins by using scope extensions](../../progressive-web-apps-chromium/how-to/handle-urls.md#handle-links-from-other-origins-by-using-scope-extensions) in _Handle links to a PWA_.
+* [Handle links from other origins by using scope extensions](../../progressive-web-apps/how-to/handle-urls.md#handle-links-from-other-origins-by-using-scope-extensions) in _Handle links to a PWA_.
 
 
 <!-- ------------------------------ -->
diff --git a/microsoft-edge/web-platform/release-notes/index.md b/microsoft-edge/web-platform/release-notes/index.md
index 7aed09e709..b11f00f5d0 100644
--- a/microsoft-edge/web-platform/release-notes/index.md
+++ b/microsoft-edge/web-platform/release-notes/index.md
@@ -24,11 +24,11 @@ Microsoft Edge DevTools
 * [Experimental features in Microsoft Edge DevTools](../../devtools-guide-chromium/experimental-features/index.md)
 
 Microsoft Edge extensions
-* [Released features for Microsoft Edge extensions](../../extensions-chromium/whats-new/released-features.md)
-* [Roadmap for Microsoft Edge extensions](../../extensions-chromium/whats-new/roadmap.md)
+* [Released features for Microsoft Edge extensions](../../extensions/whats-new/released-features.md)
+* [Roadmap for Microsoft Edge extensions](../../extensions/whats-new/roadmap.md)
 
 Progressive Web Apps
-* [What's New in PWAs](../../progressive-web-apps-chromium/whats-new/pwa.md)
+* [What's New in PWAs](../../progressive-web-apps/whats-new/pwa.md)
 
 WebView2
 * [Release Notes for the WebView2 SDK](../../webview2/release-notes/index.md)
diff --git a/microsoft-edge/web-platform/sidebar.md b/microsoft-edge/web-platform/sidebar.md
index 70fc53cbed..778091c913 100644
--- a/microsoft-edge/web-platform/sidebar.md
+++ b/microsoft-edge/web-platform/sidebar.md
@@ -32,7 +32,7 @@ The two different ways in which you can leverage the sidebar are designed to mee
 | Context | The app runs in its own web context, separate from the main tab. | The extension can access the current webpage and modify the webpage via the extension's content script. |
 | Installation | The user installs the app by interacting with the sidebar when visiting the app's website. | The extension is installed by users from Microsoft Edge Add-ons. |
 | User experience | The app has its own icon in the sidebar. Clicking the icon opens the sidebar if it was closed and displays the app's contents. | The user experience depends on the extension. The extension can open the sidebar depending on the websites the user visits in the browser. |
-| Technologies used | Web development and PWA. See [Overview of Progressive Web Apps (PWAs)](../progressive-web-apps-chromium/index.md). | Extension development.  See [Overview of Microsoft Edge extensions](../extensions-chromium/index.md). |
+| Technologies used | Web development and PWA.  See [Overview of Progressive Web Apps (PWAs)](../progressive-web-apps/index.md). | Extension development.  See [Overview of Microsoft Edge extensions](../extensions/index.md). |
 
 
 <!-- ====================================================================== -->
@@ -42,7 +42,7 @@ Sidebar apps allow you to adapt your existing Progressive Web App (PWA) to secur
 
 The sidebar app infrastructure helps users discover and install sidebar apps as they browse the web, providing great discoverability for your app just by making a simple change to your web application manifest file. Sidebar apps are a great option if you want to reuse your existing web app for the sidebar in Microsoft Edge and make full use of the web capabilities that are available to PWAs.
 
-To learn more about PWAs and how to create them, see [Overview of Progressive Web Apps (PWAs)](../progressive-web-apps-chromium/index.md). And to learn more about adapting your existing PWA to the sidebar in Microsoft Edge, see [Build a PWA for the sidebar in Microsoft Edge](../progressive-web-apps-chromium/how-to/sidebar.md).
+To learn more about PWAs and how to create them, see [Overview of Progressive Web Apps (PWAs)](../progressive-web-apps/index.md). And to learn more about adapting your existing PWA to the sidebar in Microsoft Edge, see [Build a PWA for the sidebar in Microsoft Edge](../progressive-web-apps/how-to/sidebar.md).
 
 
 <!-- ====================================================================== -->
@@ -54,6 +54,6 @@ If your app's experience relies on powerful extensions APIs, for example to read
 
 The Microsoft Edge team continues to evolve these sidebar extensibility models and welcomes your feedback.  To leave feedback, [create a new issue](https://github.com/MicrosoftEdge/MSEdgeExplainers/issues/new/) on the repo, or [search for existing issues](https://github.com/MicrosoftEdge/MSEdgeExplainers/issues) and join existing conversations.
 
-To learn more about Microsoft Edge extensions and how to create them, see [Overview of Microsoft Edge extensions](../extensions-chromium/index.md).
+To learn more about Microsoft Edge extensions and how to create them, see [Overview of Microsoft Edge extensions](../extensions/index.md).
 
-To learn more about using the sidebar API in your extension, see [Develop an extension for the Microsoft Edge sidebar](../extensions-chromium/developer-guide/sidebar.md).
+To learn more about using the sidebar API in your extension, see [Develop an extension for the Microsoft Edge sidebar](../extensions/developer-guide/sidebar.md).
diff --git a/microsoft-edge/web-platform/site-impacting-changes.md b/microsoft-edge/web-platform/site-impacting-changes.md
index 6b11b821a7..e0dea9096e 100644
--- a/microsoft-edge/web-platform/site-impacting-changes.md
+++ b/microsoft-edge/web-platform/site-impacting-changes.md
@@ -57,7 +57,7 @@ This table lists high-impact changes which the Microsoft Edge team is tracking c
 | Removal of mutation events | v127 | Removes support for mutation events in Chromium. Use the [MutationObserver](https://developer.mozilla.org/docs/Web/API/MutationObserver) API instead.  See [Intent to Deprecate: Mutation Events](https://groups.google.com/a/chromium.org/g/blink-dev/c/qDsKRU-cQ_4/m/isA1mZ_aAAAJ). |
 | Removal of Web SQL | v124 | Fully removes Web SQL support. In prior releases, Web SQL support was disabled by default but could be re-enabled via the [WebSQLAccess policy](/deployedge/microsoft-edge-policies#websqlaccess). After this change, there is no longer any mechanism to enable Web SQL support. This change is happening in the Chromium project, on which Microsoft Edge is based. For more information, see [Intent to Deprecate and Remove Web SQL](https://groups.google.com/a/chromium.org/g/blink-dev/c/fWYb6evVA-w/m/pziWcvboAgAJ). |
 | Added support for AVIF and AV1 file formats | v121 | Microsoft Edge now supports the AVIF and AV1 file formats, which offer better compression and higher quality images and videos.  Users can enjoy faster loading times and better quality media on websites. |
-| Removal of Native Client (NaCl) | v120 | To enhance web security and performance, Native Client (NaCl) is no longer supported for Microsoft Edge (along with other browsers).  NaCl was supported through v115.  In v116 through v119, NaCl was only usable by enabling an enterprise policy.  WebAssembly (Wasm) is recommended instead of NaCl; see [Run compiled code in an extension](../extensions-chromium/developer-guide/run-compiled-code.md). |
+| Removal of Native Client (NaCl) | v120 | To enhance web security and performance, Native Client (NaCl) is no longer supported for Microsoft Edge (along with other browsers).  NaCl was supported through v115.  In v116 through v119, NaCl was only usable by enabling an enterprise policy.  WebAssembly (Wasm) is recommended instead of NaCl; see [Run compiled code in an extension](../extensions/developer-guide/run-compiled-code.md). |
 | Ignore modifications to `document.domain` by default | v119 | The `document.domain` property historically could be set to relax the same-origin policy and allow subdomains from a site to interact.  This behavior will be disabled by default, such that setting the `document.domain` property will have no effect.  For more information and workarounds, see [Microsoft Edge will disable modifying document.domain](/deployedge/edge-learnmore-origin-keyed-agent-cluster). |
 | New TLS server certificate verifier | v111 (managed devices), v109 (unmanaged devices) | No site compatibility impacts are anticipated.  If you have uncommon TLS server certificate deployments, you should test in v109 to confirm there's no impact. For more information and testing guidance, see [Changes to Microsoft Edge browser TLS server certificate verification](/deployedge/microsoft-edge-security-cert-verification). |
 | Send CORS preflight requests for private network access | v104 | Starting with v104, Microsoft Edge sends a CORS [preflight](https://developer.chrome.com/blog/private-network-access-preflight/) request before a page from the internet is allowed to request resources from a local network (intranet).  The intranet server should respond to the preflight by providing explicit permission to access the resource.  The result of this check is not yet enforced.  Enforcement will begin in v111 at the earliest.  This change is happening in the Chromium project, on which Microsoft Edge is based.  For more information, see the [Chrome Platform Status entry](https://chromestatus.com/feature/5737414355058688) and [_Chrome Developers_ blog post](https://developer.chrome.com/blog/private-network-access-preflight/#rollout-plan).  Two compatibility policies are available to suppress the CORS preflight request: [InsecurePrivateNetworkRequestAllowed](/deployedge/microsoft-edge-policies#insecureprivatenetworkrequestsallowed) and [InsecurePrivateNetworkRequestAllowedForUrls](/deployedge/microsoft-edge-policies#insecureprivatenetworkrequestsallowedforurls). |
diff --git a/microsoft-edge/webview2/concepts/overview-features-apis.md b/microsoft-edge/webview2/concepts/overview-features-apis.md
index 6781e20098..f3e900d65f 100644
--- a/microsoft-edge/webview2/concepts/overview-features-apis.md
+++ b/microsoft-edge/webview2/concepts/overview-features-apis.md
@@ -1891,7 +1891,7 @@ See also:
 Your app can embed a WebView2 control that uses a Microsoft Edge extension.  A Microsoft Edge extension is a small app that developers use to add or modify features of Microsoft Edge to improve a user's browsing experience.
 
 See also:
-* [Overview of Microsoft Edge extensions](../../extensions-chromium/index.md)
+* [Overview of Microsoft Edge extensions](../../extensions/index.md)
 
 
 ##### [.NET/C#](#tab/dotnetcsharp)
diff --git a/scripts/report-references-to-old-versions.js b/scripts/report-references-to-old-versions.js
index 0010116a8d..5329e1d1fb 100644
--- a/scripts/report-references-to-old-versions.js
+++ b/scripts/report-references-to-old-versions.js
@@ -9,7 +9,7 @@ const FILES_TO_IGNORE = [
     '../microsoft-edge/devtools-guide-chromium/whats-new/**/*.md',
     '../microsoft-edge/webview2/release-notes/index.md',
     '../microsoft-edge/webview2/release-notes/archive.md',
-    '../microsoft-edge/progressive-web-apps-chromium/whats-new/*.md',
+    '../microsoft-edge/progressive-web-apps/whats-new/*.md',
     // Experimental features also often have version numbers in them. Let's ignore them too.
     '../microsoft-edge/devtools-guide-chromium/experimental-features/index.md',
     // Ignore the site-impacting-changes article, since this references older versions on purpose.