fix anchors (#35863)

* fix anchor

* Apply suggestions from code review

Co-authored-by: rebloor <[email protected]>

---------

Co-authored-by: rebloor <[email protected]>

files/en-us/mozilla/add-ons/webextensions/api/extension/getbackgroundpage/index.md

@@ -40,7 +40,7 @@ function foo() {
 }
 ```
 
-A script running in a [popup](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2) can call this function directly like this:
+A script running in a [popup](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Popups) can call this function directly like this:
 
 ```js
 // popup.js

files/en-us/mozilla/add-ons/webextensions/api/runtime/getbackgroundpage/index.md

@@ -9,7 +9,7 @@ browser-compat: webextensions.api.runtime.getBackgroundPage
 
 Retrieves the {{DOMxRef("Window")}} object for the background page running inside the current extension. If the background page is non-persistent (an event page) and it is not running, the background page is started.
 
-This provides a convenient way for other privileged extension scripts to get direct access to the background script's scope. This enables them to access variables or call functions defined in that scope. "Privileged script" here includes scripts running in [options pages](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#options_pages), or scripts running in [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2) or [page action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#page_actions) popups, but does _not_ include [content scripts](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#content_scripts).
+This provides a convenient way for other privileged extension scripts to get direct access to the background script's scope. This enables them to access variables or call functions defined in that scope. "Privileged script" here includes scripts running in [options pages](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Options_pages), or scripts running in [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Toolbar_button) or [page action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Page_actions) popups, but does _not_ include [content scripts](/en-US/docs/Mozilla/Add-ons/WebExtensions/Content_scripts).
 
 Note that variables that were declared using [`const`](/en-US/docs/Web/JavaScript/Reference/Statements/const) or [`let`](/en-US/docs/Web/JavaScript/Reference/Statements/let) do not appear in the `Window` object returned by this function.
 
@@ -56,7 +56,7 @@ function foo() {
 }
 ```
 
-A script running in a [popup](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2) can call this function directly like this:
+A script running in a [popup](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Popups) can call this function directly like this:
 
 ```js
 // popup.js

files/en-us/mozilla/add-ons/webextensions/api/runtime/messagesender/index.md

@@ -33,7 +33,7 @@ Values of this type are objects. They contain the following properties:
 
   - : `string`. The URL of the page or frame hosting the script that sent the message.
 
-    If the sender is a script running in an extension page (such as a [background page](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#background_scripts), an [options page](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#options_pages), or a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2) or [page action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#page_actions) popup), the URL is in the form `"moz-extension://<extension-internal-id>/path/to/page.html"`. If the sender is a background script and you haven't included a background page, it is `"moz-extension://<extension-internal-id>/_generated_background_page.html"`.
+    If the sender is a script running in an extension page (such as a [background page](/en-US/docs/Mozilla/Add-ons/WebExtensions/Background_scripts), an [options page](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Options_pages), or a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Toolbar_button) or [page action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Page_actions) popup), the URL is in the form `"moz-extension://<extension-internal-id>/path/to/page.html"`. If the sender is a background script and you haven't included a background page, it is `"moz-extension://<extension-internal-id>/_generated_background_page.html"`.
 
     If the sender is a script running in a web page (including content and normal page scripts), then `url` is the web page URL. If the script is running in an iframe, `url` is the iframe's URL.
 

files/en-us/mozilla/add-ons/webextensions/api/tabs/connect/index.md

@@ -41,7 +41,7 @@ browser.tabs.connect(
 
 ## Examples
 
-In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2), then connects to the currently active tab, then sends a message using the `Port` that's returned from `connect()`:
+In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Toolbar_button), then connects to the currently active tab, then sends a message using the `Port` that's returned from `connect()`:
 
 ```js
 function connectToTab(tabs) {

files/en-us/mozilla/add-ons/webextensions/api/tabs/print/index.md

@@ -25,7 +25,7 @@ None.
 
 ## Examples
 
-In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2), then tries to print the currently active tab:
+In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Toolbar_button), then tries to print the currently active tab:
 
 ```js
 browser.browserAction.onClicked.addListener(() => {

files/en-us/mozilla/add-ons/webextensions/api/tabs/printpreview/index.md

@@ -31,7 +31,7 @@ A [`Promise`](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) that
 
 ## Examples
 
-In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2), then opens print preview for the currently active tab:
+In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Toolbar_button), then opens print preview for the currently active tab:
 
 ```js
 browser.browserAction.onClicked.addListener(() => {

files/en-us/mozilla/add-ons/webextensions/api/tabs/saveaspdf/index.md

@@ -36,7 +36,7 @@ A [`Promise`](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) that
 
 ## Examples
 
-In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/Anatomy_of_a_WebExtension#browser_actions_2), then tries to save the currently active tab as a PDF file, then logs the result:
+In this example a background script listens for a click on a [browser action](/en-US/docs/Mozilla/Add-ons/WebExtensions/user_interface/Toolbar_button), then tries to save the currently active tab as a PDF file, then logs the result:
 
 ```js
 browser.browserAction.onClicked.addListener(() => {