diff --git a/files/en-us/mdn/structures/page_types/api_event_subpage_template/index.md b/files/en-us/mdn/structures/page_types/api_event_subpage_template/index.md
index c03306d8c952517..e721a0c9fa27339 100644
--- a/files/en-us/mdn/structures/page_types/api_event_subpage_template/index.md
+++ b/files/en-us/mdn/structures/page_types/api_event_subpage_template/index.md
@@ -162,10 +162,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/api_landing_page_template/index.md b/files/en-us/mdn/structures/page_types/api_landing_page_template/index.md
index 670b16732f8ae16..f4ffdc6e0fc4dce 100644
--- a/files/en-us/mdn/structures/page_types/api_landing_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/api_landing_page_template/index.md
@@ -153,10 +153,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/api_method_subpage_template/index.md b/files/en-us/mdn/structures/page_types/api_method_subpage_template/index.md
index 70d2d6c59ce22dd..2329842d61be891 100644
--- a/files/en-us/mdn/structures/page_types/api_method_subpage_template/index.md
+++ b/files/en-us/mdn/structures/page_types/api_method_subpage_template/index.md
@@ -149,10 +149,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/api_property_subpage_template/index.md b/files/en-us/mdn/structures/page_types/api_property_subpage_template/index.md
index 510e60c5149cddf..190c4d59c1e72fc 100644
--- a/files/en-us/mdn/structures/page_types/api_property_subpage_template/index.md
+++ b/files/en-us/mdn/structures/page_types/api_property_subpage_template/index.md
@@ -113,10 +113,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/api_reference_page_template/index.md b/files/en-us/mdn/structures/page_types/api_reference_page_template/index.md
index 44b0e006a5e61e0..579880fa58e4be5 100644
--- a/files/en-us/mdn/structures/page_types/api_reference_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/api_reference_page_template/index.md
@@ -119,10 +119,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/aria_page_template/index.md b/files/en-us/mdn/structures/page_types/aria_page_template/index.md
index 727fb16798c9a5e..b245757b6bb599c 100644
--- a/files/en-us/mdn/structures/page_types/aria_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/aria_page_template/index.md
@@ -91,10 +91,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/css_property_page_template/index.md b/files/en-us/mdn/structures/page_types/css_property_page_template/index.md
index 7430c4b168d3a5a..d3559b40124173a 100644
--- a/files/en-us/mdn/structures/page_types/css_property_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/css_property_page_template/index.md
@@ -126,10 +126,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/css_selector_page_template/index.md b/files/en-us/mdn/structures/page_types/css_selector_page_template/index.md
index 3050cb5614a8061..9df721ef9b3d729 100644
--- a/files/en-us/mdn/structures/page_types/css_selector_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/css_selector_page_template/index.md
@@ -109,10 +109,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/html_element_page_template/index.md b/files/en-us/mdn/structures/page_types/html_element_page_template/index.md
index afdd53f7cf83288..b646290b1d5cb8b 100644
--- a/files/en-us/mdn/structures/page_types/html_element_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/html_element_page_template/index.md
@@ -123,10 +123,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/http_header_page_template/index.md b/files/en-us/mdn/structures/page_types/http_header_page_template/index.md
index a9f8fffd5e31db4..17a7b1a273a618c 100644
--- a/files/en-us/mdn/structures/page_types/http_header_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/http_header_page_template/index.md
@@ -141,10 +141,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/page_types/svg_element_page_template/index.md b/files/en-us/mdn/structures/page_types/svg_element_page_template/index.md
index 71773433fdec4a3..c29fa983e4647d3 100644
--- a/files/en-us/mdn/structures/page_types/svg_element_page_template/index.md
+++ b/files/en-us/mdn/structures/page_types/svg_element_page_template/index.md
@@ -127,10 +127,10 @@ See our guide on how to add [code examples](/en-US/docs/MDN/Structures/Code_exam
 >  ## Examples
 >
 >  ### Using the fetch API
->  ... example of Fetch
+>  Example of Fetch
 >
 >  ### More examples
->  ...links to more examples on other pages
+>  Links to more examples on other pages
 >  ```
 >
 > **Scenario 2:** If you _only_ have examples on another page and none on this page:
diff --git a/files/en-us/mdn/structures/syntax_sections/index.md b/files/en-us/mdn/structures/syntax_sections/index.md
index 8c3863b63fa69aa..bb06350c26d589f 100644
--- a/files/en-us/mdn/structures/syntax_sections/index.md
+++ b/files/en-us/mdn/structures/syntax_sections/index.md
@@ -131,19 +131,19 @@ For methods with a callback function, the syntax for arrow functions, functions,
 
 ```js
 // Arrow function
-filter((currentValue) => { /* ... */ } )
-filter((currentValue, index) => { /* ... */ } )
-filter((currentValue, index, array) => { /* ... */ } )
+filter((currentValue) => { /* … */ } )
+filter((currentValue, index) => { /* … */ } )
+filter((currentValue, index, array) => { /* … */ } )
 
 // Callback function
 filter(callbackFn)
 filter(callbackFn, thisArg)
 
 // Inline callback function
-filter(function(currentValue) { /* ... */ })
-filter(function(currentValue, index) { /* ... */ })
-filter(function(currentValue, index, array){ /* ... */ })
-filter(function(currentValue, index, array) { /* ... */ }, thisArg)
+filter(function(currentValue) { /* … */ })
+filter(function(currentValue, index) { /* … */ })
+filter(function(currentValue, index, array){ /* … */ })
+filter(function(currentValue, index, array) { /* … */ }, thisArg)
 ```
 
 ##### Syntax for arbitrary number of parameters
@@ -153,7 +153,7 @@ For methods that accept an arbitrary number of parameters, the syntax block is w
 ```js
 unshift(element0)
 unshift(element0, element1)
-unshift(element0, element1, /* ... ,*/ elementN)
+unshift(element0, element1, /* … ,*/ elementN)
 ```
 
 #### Parameters section
diff --git a/files/en-us/mdn/tools/kumascript/index.md b/files/en-us/mdn/tools/kumascript/index.md
index fc9ef0f1396be40..895410cf7fafd41 100644
--- a/files/en-us/mdn/tools/kumascript/index.md
+++ b/files/en-us/mdn/tools/kumascript/index.md
@@ -59,7 +59,7 @@ Hello #2
 Macro syntax takes the following general form:
 
 ```js
-\{{templateName("arg0", "arg1", ..., "argN")}}
+\{{templateName("arg0", "arg1", /* …, */ "argN")}}
 ```
 
 Macro syntax follows these rules:
@@ -110,7 +110,7 @@ KumaScript templates are processed by an [embedded JavaScript template engine](h
   <% } %>
   ```
 
-  Note how the JavaScript code is contained in `<% ... %>`, and output happens in the space between `%> ... <%`. The `for` loop in JS can begin with one `<% %>` block, transition to output mode, and finish up in a second `<% %>` JS block.
+  Note how the JavaScript code is contained in `<% … %>`, and output happens in the space between `%> … <%`. The `for` loop in JS can begin with one `<% %>` block, transition to output mode, and finish up in a second `<% %>` JS block.
 
 - For more details on EJS syntax, [check out the upstream module documentation](https://ejs.co).
 
@@ -201,7 +201,7 @@ This manually-maintained documentation is likely to fall out of date with the co
 
 - `md5(string)`
   - : Returns an MD5 hex digest of the given string.
-- `template("name", ["arg0", "arg1", ..., "argN"])`
+- `template("name", ["arg0", "arg1", …, "argN"])`
 
   - : Executes and returns the result of the named template with the given list of parameters.
 
@@ -321,7 +321,7 @@ Syntax error at line 436, column 461: Expected valid JSON object as the paramete
 If you edit the page, you'll probably see a macro like this at the bottom of the page:
 
 ```plain
-\{{ wiki.languages({ "zh-tw": "zh_tw/Core_JavaScript_1.5_教學/JavaScript_概要", ... }) }}
+\{{ wiki.languages({ "zh-tw": "zh_tw/Core_JavaScript_1.5_教學/JavaScript_概要", … }) }}
 ```
 
 To fix the problem, just delete the macro. Or, replace the curly braces on either side with HTML comments `<!-- -->` to preserve the information, like so:
diff --git a/files/en-us/mozilla/add-ons/webextensions/api/events/urlfilter/index.md b/files/en-us/mozilla/add-ons/webextensions/api/events/urlfilter/index.md
index 43c72ac5c4a20a6..045d464f7d3e507 100644
--- a/files/en-us/mozilla/add-ons/webextensions/api/events/urlfilter/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/api/events/urlfilter/index.md
@@ -15,7 +15,7 @@ browser-compat: webextensions.api.events.UrlFilter
 ---
 {{AddonSidebar()}}
 
-Describes various criteria for filtering URLs. If all of the criteria specified in the filter's properties match the URL, then the filter matches. Filters are often provided to API methods in an [Array](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) of UrlFilters. For example, [webNavigation](/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation) listeners can be added with a filter which is an object with a single `url` property that is an [Array](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) of UrlFilters, e.g. `{url:[UrlFilter,UrlFilter,...]}`. If any filter within the Array of UrlFilters matches, then it is considered a match for the Array. Effectively, the criteria specified within a single filter are AND'ed together, while all of the individual filters within an Array are OR'ed.
+Describes various criteria for filtering URLs. If all of the criteria specified in the filter's properties match the URL, then the filter matches. Filters are often provided to API methods in an [Array](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) of UrlFilters. For example, [webNavigation](/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation) listeners can be added with a filter which is an object with a single `url` property that is an [Array](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) of UrlFilters, e.g. `{url:[UrlFilter, UrlFilter, …]}`. If any filter within the Array of UrlFilters matches, then it is considered a match for the Array. Effectively, the criteria specified within a single filter are AND'ed together, while all of the individual filters within an Array are OR'ed.
 
 All criteria are case sensitive.
 
diff --git a/files/en-us/mozilla/add-ons/webextensions/api/extension/onrequestexternal/index.md b/files/en-us/mozilla/add-ons/webextensions/api/extension/onrequestexternal/index.md
index a173c2ab066c738..7cdad91a30199e0 100644
--- a/files/en-us/mozilla/add-ons/webextensions/api/extension/onrequestexternal/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/api/extension/onrequestexternal/index.md
@@ -25,8 +25,8 @@ Fired when a request is sent from another extension.
 chrome.extension.onRequestExternal.addListener(function(
   request,         // optional any
   sender,          // runtime.MessageSender
-  function() {...} // function
-) {...})
+  function() { } // function
+) { })
 chrome.extension.onRequestExternal.removeListener(listener)
 chrome.extension.onRequestExternal.hasListener(listener)
 ```
diff --git a/files/en-us/mozilla/add-ons/webextensions/api/extension/sendrequest/index.md b/files/en-us/mozilla/add-ons/webextensions/api/extension/sendrequest/index.md
index 61d57101dac9376..edddde867f21a3d 100644
--- a/files/en-us/mozilla/add-ons/webextensions/api/extension/sendrequest/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/api/extension/sendrequest/index.md
@@ -26,7 +26,7 @@ Sends a single request to other listeners within the extension. Similar to {{Web
 chrome.extension.sendRequest(
   extensionId,             // optional string
   request,                 // any
-  function(response) {...} // optional function
+  function(response) { } // optional function
 )
 ```
 
diff --git a/files/en-us/mozilla/add-ons/webextensions/api/menus/create/index.md b/files/en-us/mozilla/add-ons/webextensions/api/menus/create/index.md
index 3544919e73c8270..04c92cce853bfbd 100644
--- a/files/en-us/mozilla/add-ons/webextensions/api/menus/create/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/api/menus/create/index.md
@@ -26,7 +26,7 @@ For compatibility with other browsers, Firefox makes this method available via t
 ```js
 browser.menus.create(
   createProperties, // object
-  function() {...}  // optional function
+  function() { }  // optional function
 )
 ```
 
diff --git a/files/en-us/mozilla/add-ons/webextensions/manifest.json/index.md b/files/en-us/mozilla/add-ons/webextensions/manifest.json/index.md
index d8c84c5e272cec7..9a2173739f1c4ee 100644
--- a/files/en-us/mozilla/add-ons/webextensions/manifest.json/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/manifest.json/index.md
@@ -129,7 +129,7 @@ For complete example extensions, see [Example extensions](/en-US/docs/Mozilla/Ad
 
   "default_locale": "en",
 
-  "description": "...",
+  "description": "…",
 
   "icons": {
     "48": "icon.png",
@@ -138,7 +138,7 @@ For complete example extensions, see [Example extensions](/en-US/docs/Mozilla/Ad
 
   "manifest_version": 2,
 
-  "name": "...",
+  "name": "…",
 
   "page_action": {
     "default_icon": {
diff --git a/files/en-us/mozilla/add-ons/webextensions/manifest.json/version/format/index.md b/files/en-us/mozilla/add-ons/webextensions/manifest.json/version/format/index.md
index 7057acd7f66badf..f5fcfcf6ef26863 100644
--- a/files/en-us/mozilla/add-ons/webextensions/manifest.json/version/format/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/manifest.json/version/format/index.md
@@ -36,7 +36,7 @@ When two version strings are compared, their version parts are compared left to
 
 If at some point a version part of one version string is greater than the corresponding version part of another version string, then the first version string is greater than the other one.
 
-Otherwise, the version strings are equal. Note, that since missing version parts are treated as if they were `0`, the following version strings are equal: `1`, `1.0`, `1.0.`, `1.0.0`, and even `1.0...`
+Otherwise, the version strings are equal. Note that since missing version parts are treated as if they were `0`, the following version strings are equal: `1`, `1.0`, `1.0.`, `1.0.0`, and even `1.0..`.
 
 ### Comparing version parts
 
diff --git a/files/en-us/mozilla/add-ons/webextensions/manifest.json/web_accessible_resources/index.md b/files/en-us/mozilla/add-ons/webextensions/manifest.json/web_accessible_resources/index.md
index d67827a5ad7da73..e0192ede444d2ff 100644
--- a/files/en-us/mozilla/add-ons/webextensions/manifest.json/web_accessible_resources/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/manifest.json/web_accessible_resources/index.md
@@ -64,7 +64,7 @@ In Manifest V3, the `web_accessible_resources` key is an array of objects like t
 
 ```
 {
-  ...
+  // …
   "web_accessible_resources": [
     {
       "resources": [ "test1.png", "test2.png" ],
@@ -75,7 +75,7 @@ In Manifest V3, the `web_accessible_resources` key is an array of objects like t
       "use_dynamic_url": true
     }
   ],
-  ...
+  // …
 }
 ```
 
diff --git a/files/en-us/mozilla/add-ons/webextensions/native_messaging/index.md b/files/en-us/mozilla/add-ons/webextensions/native_messaging/index.md
index 0e183f91ccd4362..aca983c59874274 100644
--- a/files/en-us/mozilla/add-ons/webextensions/native_messaging/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/native_messaging/index.md
@@ -284,8 +284,8 @@ You can quickly get started sending and receiving messages with this NodeJS code
             flushChunksQueue();
 
             const json = JSON.parse(contentWithoutSize);
-            // Do something with the data...
-            }
+            // Do something with the data…
+         }
     };
 
     process.stdin.on('readable', () => {
diff --git a/files/en-us/mozilla/add-ons/webextensions/user_interface/context_menu_items/index.md b/files/en-us/mozilla/add-ons/webextensions/user_interface/context_menu_items/index.md
index f9a6ae796caaeee..bb39c29ad7f878a 100644
--- a/files/en-us/mozilla/add-ons/webextensions/user_interface/context_menu_items/index.md
+++ b/files/en-us/mozilla/add-ons/webextensions/user_interface/context_menu_items/index.md
@@ -42,7 +42,7 @@ browser.contextMenus.onClicked.addListener(function(info, tab) {
     case "log-selection":
       console.log(info.selectionText);
       break;
-    ...
+    // …
   }
 })
 ```
diff --git a/files/en-us/mozilla/firefox/releases/20/index.md b/files/en-us/mozilla/firefox/releases/20/index.md
index db2598fbcf967fa..3b708a2dcf74494 100644
--- a/files/en-us/mozilla/firefox/releases/20/index.md
+++ b/files/en-us/mozilla/firefox/releases/20/index.md
@@ -24,7 +24,7 @@ Firefox 20 was released on April, 2nd 2013. This article provides information ab
 - Support for the `WeakMap.prototype.clear()` method, recently added to the Harmony (EcmaScript 2015) draft proposal has been added ({{bug("814562")}}).
 - Support for the [`Math.imul()`](/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul) method, a C-style 32-bit multiplication function. Though proposed for Harmony (EcmaScript 2015) it has not yet accepted and still is non-standard ({{bug("808148")}}).
 - Web apps using draggable text with Kinetic 3.x are working, even when using the Cairo canvas backend ({{bug("835064")}}).
-- The [`for each…in`](/en-US/docs/JavaScript/Reference/Statements/for_each...in) statement has been deprecated and should not be used. Consider using the new [`for…of`](/en-US/docs/Web/JavaScript/Reference/Statements/for...of) statement ({{Bug("804834")}}).
+- The [`for each...in`](/en-US/docs/JavaScript/Reference/Statements/for_each...in) statement has been deprecated and should not be used. Consider using the new [`for...of`](/en-US/docs/Web/JavaScript/Reference/Statements/for...of) statement ({{Bug("804834")}}).
 - Support for the {{jsxref("Map.prototype.keys()")}}, {{jsxref("Map.prototype.values()")}}, and {{jsxref("Map.prototype.entries()")}} has been added ({{bug("817368")}}).
 
 ### CSS
@@ -50,7 +50,7 @@ Firefox 20 was released on April, 2nd 2013. This article provides information ab
 - The third, optional, `transfer` argument of {{domxref("Window.postMessage")}} is now supported. It allows to transfer a sequence of {{domxref("Transferable")}} objects to the destination ({{bug("822094")}}).
 - The non-standard {{domxref("Window.sizeToContent()")}} method now clamps the minimal size: the window cannot be forced anymore to small sizes preventing the user to interact with ({{bug(764240)}}).
 - Blend modes, such as `overlay`, `color-burn`, `hue`, etc. have been added to the Canvas {{domxref("CanvasRenderingContext2D.globalCompositeOperation")}} property ({{bug(748433)}}).
-- The prefixed version of [`window.indexedDB`](/en-US/docs/Web/API/indexedDB) — `window.mozIndexedDB` — was reintroduced to Gecko, so that bad cross-browser prefixing code (such as `var indexedDB = window.indexedDB || window.webkitIndexedDB ...`) doesn't break in Firefox. A better approach is `window.indexedDB = window.indexedDB || window.webkitIndexedDB ...` (see {{bug("770844")}}.)
+- The prefixed version of [`window.indexedDB`](/en-US/docs/Web/API/indexedDB) — `window.mozIndexedDB` — was reintroduced to Gecko, so that bad cross-browser prefixing code (such as `var indexedDB = window.indexedDB || window.webkitIndexedDB …`) doesn't break in Firefox. A better approach is `window.indexedDB = window.indexedDB || window.webkitIndexedDB …` (see {{bug("770844")}}.)
 
 ### SVG
 
diff --git a/files/en-us/mozilla/firefox/releases/3/updating_web_applications/index.md b/files/en-us/mozilla/firefox/releases/3/updating_web_applications/index.md
index e0ee95caf0f5195..ca954372dc1428b 100644
--- a/files/en-us/mozilla/firefox/releases/3/updating_web_applications/index.md
+++ b/files/en-us/mozilla/firefox/releases/3/updating_web_applications/index.md
@@ -26,13 +26,13 @@ Firefox 3 closes a security bug in frames and iframes that allowed them to inher
 The `<script>` element in `text/html` documents now requires a closing `</script>` in HTML 4 documents, even if you're not including any content in between. While in previous versions of Firefox, you could do:
 
 ```html
-<script ... />
+<script … />
 ```
 
 Now the markup must comply with the HTML specifications (if it's actually HTML), and hence you must actually close it, like this:
 
 ```html
-<script ...></script>
+<script …></script>
 ```
 
 This improves both compatibility and security.
diff --git a/files/en-us/mozilla/firefox/releases/5/updating_add-ons/index.md b/files/en-us/mozilla/firefox/releases/5/updating_add-ons/index.md
index 356ee2bbfebb46a..dd8ff03c87b032e 100644
--- a/files/en-us/mozilla/firefox/releases/5/updating_add-ons/index.md
+++ b/files/en-us/mozilla/firefox/releases/5/updating_add-ons/index.md
@@ -57,9 +57,9 @@ To fix this, move your instantiation of these services into your `load` event ha
 var MyObject = {
   comp : null,
   init: function() {
-    this.comp = Components.classes[...].getService(...);
+    this.comp = Components.classes["…"].getService(/* … */);
   },
-  ...
+  // …
 }
 window.addEventListener("load", function() { MyObject.init(); }, false);
 ```
diff --git a/files/en-us/related/imsc/index.md b/files/en-us/related/imsc/index.md
index a9138ef46882b5f..7c5fb92cdaabca4 100644
--- a/files/en-us/related/imsc/index.md
+++ b/files/en-us/related/imsc/index.md
@@ -21,7 +21,7 @@ Each IMSC document is self-contained and combines content, timing, layout and st
 IMSC differs from HTML in a number of ways:
 
 - IMSC uses [namespaces](/en-US/docs/Related/IMSC/Namespaces), so that `tts:fontSize` is not the same as `fontSize`, and namespace declarations are required, like
-  `<tt xmlns="http://www.w3.org/ns/ttml" xmlns:tts="http://www.w3.org/ns/ttml#styling" ...>`
+  `<tt xmlns="http://www.w3.org/ns/ttml" xmlns:tts="http://www.w3.org/ns/ttml#styling" …>`
 - IMSC has stricter rules, for instance `<p>` elements can only be present within `<div>` elements, and cannot be direct children of `<body>` elements.
 
 While attributes names and syntax are similar, styling differs from CSS in a couple of ways:
diff --git a/files/en-us/related/imsc/mapping_video_time_codes_to_imsc/index.md b/files/en-us/related/imsc/mapping_video_time_codes_to_imsc/index.md
index e3aa889c42c3c4a..cbab3e8eb30164a 100644
--- a/files/en-us/related/imsc/mapping_video_time_codes_to_imsc/index.md
+++ b/files/en-us/related/imsc/mapping_video_time_codes_to_imsc/index.md
@@ -50,8 +50,8 @@ That said, there is actually a different approach to describing the time express
 The two attributes that must be included to use the frames method are `frameRate` and `frameRateMultiplier`. The frame rate describes how many frames are in one second, and the multiplier is applied to the `frameRate` to describe the actual frame rate in real time seconds. To describe a frame rate of 23.976fps, the following values would be used:
 
 ```xml
-<tt ... ttp:frameRate="24" ttp:frameRateMultiplier="1000 1001">
-  ...
+<tt ttp:frameRate="24" ttp:frameRateMultiplier="1000 1001">
+  …
 </tt>
 ```
 
diff --git a/files/en-us/web/accessibility/aria/annotations/index.md b/files/en-us/web/accessibility/aria/annotations/index.md
index ce9e378473d1b3b..30893f04d30fb18 100644
--- a/files/en-us/web/accessibility/aria/annotations/index.md
+++ b/files/en-us/web/accessibility/aria/annotations/index.md
@@ -52,7 +52,7 @@ We have already alluded to the difference between these two above — `aria-desc
 `aria-describedby` is appropriate for associating an element with a simple text description, where you don't have much in the way of meaningful semantics contained within. For example:
 
 ```html
-<p id="description-id">An extended text description of some kind...</p>
+<p id="description-id">An extended text description of some kind.</p>
 
 <div aria-describedby="description-id">
   <!-- Some kind of UI feature that needs an accessible description  -->
@@ -65,7 +65,7 @@ We have already alluded to the difference between these two above — `aria-desc
 <div id="detail-id">
   <h2>A heading</h2>
   <p>An extended text description of some kind…</p>
-  <p><time datetime="...">A timestamp</time></p>
+  <p><time datetime="…">A timestamp</time></p>
 </div>
 
 <div aria-details="detail-id">
diff --git a/files/en-us/web/accessibility/aria/aria_live_regions/index.md b/files/en-us/web/accessibility/aria/aria_live_regions/index.md
index 9b6b44b615bc362..2fe21625aee0627 100644
--- a/files/en-us/web/accessibility/aria/aria_live_regions/index.md
+++ b/files/en-us/web/accessibility/aria/aria_live_regions/index.md
@@ -105,7 +105,7 @@ Here is a screenshot of VoiceOver on Mac announcing the update (via subtitles) t
 
 ## Roles with implicit live region attributes
 
-Elements with the following [`role="..."`](/en-US/docs/Web/Accessibility/ARIA/Roles) values act as live regions by default:
+Elements with the following [`role="…"`](/en-US/docs/Web/Accessibility/ARIA/Roles) values act as live regions by default:
 
 <table style="width: 100%;">
  <thead>
@@ -196,7 +196,7 @@ One way around this would be to first clear all the contents of the live region
 
 ```html
 <div id="clock" role="timer" aria-live="polite" aria-atomic="true">
-  ...
+  …
 </div>
 ```
 
diff --git a/files/en-us/web/accessibility/aria/attributes/aria-colcount/index.md b/files/en-us/web/accessibility/aria/attributes/aria-colcount/index.md
index 63d6ace1a4b53dd..ea821f0b1f27f78 100644
--- a/files/en-us/web/accessibility/aria/attributes/aria-colcount/index.md
+++ b/files/en-us/web/accessibility/aria/attributes/aria-colcount/index.md
@@ -62,7 +62,7 @@ The first rule of ARIA use is "if you can use a native feature with the semantic
       <td>New York</td>
       <td>14127</td>
     </tr>
-    ...
+    …
   </tbody>
 </table>
 ```