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diff --git a/files/ja/mozilla/gecko/chrome/api/chromeworker/index.html b/files/ja/mozilla/gecko/chrome/api/chromeworker/index.html
new file mode 100644
index 0000000000..db2f4f08de
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/api/chromeworker/index.html
@@ -0,0 +1,54 @@
+---
+title: ChromeWorker
+slug: Mozilla/Gecko/Chrome/API/ChromeWorker
+translation_of: Mozilla/Gecko/Chrome/API/ChromeWorker
+---
+<div>
+<section class="Quick_links" id="Quick_Links">
+<ol>
+ <li><strong><a href="/en-US/docs/Web/API/Mozilla"><code>Mozilla</code></a></strong></li>
+</ol>
+</section>
+
+<div class="blockIndicator nonStandard nonStandardHeader">
+<p><strong><span class="gt-baf-term-text"><span class="gt-baf-cell gt-baf-word-clickable">非標準</span></span></strong><br>
+ この機能は標準的ではなく、標準化もされていません。 Web に公開している本番サイトでは使用しないでください。すべてのユーザに対して機能するわけではありません。実装間には大きな非互換性があり、その振る舞いは将来変更されるかもしれません。</p>
+</div>
+</div>
+
+<h2 id="要約">要約</h2>
+
+<p>特権コードを開発していて、ネイティブコードへの呼び出しを実行するために <a href="/en/js-ctypes" title="en/js-ctypes">js-ctypes</a> を使用できる worker を作成したい場合は、標準の <a href="/ja/docs/Web/API/Worker" title="The Worker interface of the Web Workers API represents a background task that can be easily created and can send messages back to its creator. Creating a worker is as simple as calling the Worker() constructor and specifying a script to be run in the worker thread."><code>Worker</code></a> オブジェクトの代わりに <code>ChromeWorker</code> を使用してください。worker のグローバルスコープで利用可能なグローバル <code>ctypes</code> オブジェクトを介して <a href="/en/js-ctypes" title="en/js-ctypes">js-ctypes</a> にアクセスできることを除けば、標準の <a href="/ja/docs/Web/API/Worker" title="The Worker interface of the Web Workers API represents a background task that can be easily created and can send messages back to its creator. Creating a worker is as simple as calling the Worker() constructor and specifying a script to be run in the worker thread."><code>Worker</code></a> とまったく同じように機能します。ChromeWorker による js-ctypes の使用例は Github で入手でき、<a href="#seealso">下記の関連項目セクション</a>からリンクされています。Promise を特徴とするコールバックバージョンの ChromeWorker で postMessage を使用するには、<a href="/ja/docs/Web/API/PromiseWorker">PromiseWorker</a> を参照してください。</p>
+
+<p>アドオンは worker をロードするために絶対 URL を使用しなければならず、それらの URL は <code>chrome://</code> または <code>resource://</code> プロトコル (<code>file://</code> は受け入れられません) を使用する必要があります。 <code>file://</code> URL を使用したいアドオンは、まず次のようなコードを使用してリソース置換パスを登録する必要があります。</p>
+
+<pre class="brush: js">var fileuri = Services.io.newFileURI(file);
+Services.io.getProtocolHandler('resource').
+              QueryInterface(Ci.nsIResProtocolHandler).
+              setSubstitution('my-cool-addon', fileuri);
+  var worker = new Worker('resource://my-cool-addon/worker.js');</pre>
+
+<p>More references:</p>
+
+<ul>
+ <li>You can use <code>ChromeWorker</code> from <a href="/en/JavaScript_code_modules" title="en/JavaScript code modules">JavaScript code modules</a>. See <a href="/en/JavaScript_code_modules/Using_workers_in_JavaScript_code_modules" title="en/JavaScript code modules/Using workers in JavaScript code modules">Using workers in JavaScript code modules</a> for details.</li>
+ <li>You can use <a href="https://developer.mozilla.org/en-US/docs/Mozilla/ChromeWorkers/Chrome_Worker_Modules">ChromeWorker modules</a> in ChromeWorkers.</li>
+ <li>See <a class="internal" href="/En/Using_web_workers" title="en/Using DOM workers">Using web workers</a> for examples and details.</li>
+</ul>
+
+<h2 id="あわせて参照">あわせて参照<a id="seealso" name="seealso"></a></h2>
+
+<ul>
+ <li><a class="internal" href="/en/Using_web_workers" title="en/Using DOM workers">Using web workers</a></li>
+ <li><a href="/en/JavaScript_code_modules/Using_workers_in_JavaScript_code_modules" title="en/JavaScript code modules/Using workers in JavaScript code modules">Using workers in JavaScript code modules</a></li>
+ <li><a href="/en-US/docs/Web/API/Worker" title="The Worker interface of the Web Workers API represents a background task that can be easily created and can send messages back to its creator. Creating a worker is as simple as calling the Worker() constructor and specifying a script to be run in the worker thread."><code>Worker</code></a></li>
+ <li><code><a class="internal" href="/en/DOM/SharedWorker" title="en/DOM/SharedWorker">SharedWorker</a></code></li>
+ <li><a class="external" href="http://www.whatwg.org/specs/web-workers/current-work/" title="http://www.whatwg.org/specs/web-workers/current-work/">Web Workers specification</a></li>
+ <li><a href="/en-US/docs/Web/API/WorkerGlobalScope" title="The WorkerGlobalScope interface of the Web Workers API is an interface representing the scope of any worker. Workers have no browsing context; this scope contains the information usually conveyed by Window objects — in this case event handlers, the console or the associated WorkerNavigator object. Each WorkerGlobalScope has its own event loop."><code>WorkerGlobalScope</code></a></li>
+ <li><a href="https://github.com/Noitidart/ChromeWorker">GitHub :: ChromeWorker</a> - A fully working demo addon using js-ctypes from a chrome worker. Uses WinAPI example.</li>
+ <li><a href="/en-US/docs/Web/API/PromiseWorker">PromiseWorker</a>
+  <ul>
+   <li><a href="https://github.com/Noitidart/PromiseWorker">GitHub :: PromiseWorker</a> - Shows how to uses promises as an twist on postMessage feature of ChromeWorker</li>
+  </ul>
+ </li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/api/index.html b/files/ja/mozilla/gecko/chrome/api/index.html
new file mode 100644
index 0000000000..3885f415f1
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/api/index.html
@@ -0,0 +1,31 @@
+---
+title: Chrome-only API reference
+slug: Mozilla/Gecko/Chrome/API
+tags:
+  - API
+  - 'API:Mozilla Extensions'
+  - Chrome
+  - Gecko
+  - Mozilla
+  - NeedsTranslation
+  - Non-standard
+  - Overview
+  - Reference
+  - TopicStub
+translation_of: Mozilla/Gecko/Chrome/API
+---
+<p>{{FirefoxSidebar}}</p>
+
+<p class="seoSummary">This page lists APIs that only run in Gecko Chrome code (and sometimes in other privileged circumstances).</p>
+
+<div class="blockIndicator note">
+<p><strong>Note</strong>: Most of the APIs exposed to the Web in general are also usable in Chrome code: see <a href="/en-US/docs/Web/API">Web APIs</a> for a list of these.</p>
+</div>
+
+<p>{{LandingPageListSubpages}}</p>
+
+<dl>
+ <dd class="landingPageList"> </dd>
+</dl>
+
+<p> </p>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell-text(hover)/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell-text(hover)/index.html
new file mode 100644
index 0000000000..0c92782256
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell-text(hover)/index.html
@@ -0,0 +1,16 @@
+---
+title: ':-moz-tree-cell-text(hover)'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-cell-text(hover)'
+tags:
+  - CSS
+  - Non-standard
+  - Reference
+  - XUL
+  - 疑似クラス
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-cell-text(hover)'
+---
+<div>{{Non-standard_header}}{{CSSRef}}{{gecko_minversion_header(1.9)}}</div>
+
+<p><a href="/ja/docs/Web/CSS">CSS</a> の <strong><code>:-moz-tree-cell-text(hover)</code></strong> <a href="/ja/docs/Web/CSS/Pseudo-classes">擬似クラス</a>は、マウスカーソルがツリーセル内のテキストに合わせてあるとき、要素に一致します。</p>
+
+<p>このセレクターは、主にテーマ開発者によって使用されるものです。</p>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell-text/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell-text/index.html
new file mode 100644
index 0000000000..030edc7899
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell-text/index.html
@@ -0,0 +1,27 @@
+---
+title: ':-moz-tree-cell-text'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-cell-text'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-cell-text'
+---
+<p>{{Non-standard_header}}{{CSSRef}}</p>
+
+<p><code>properties</code> 属性によってアクティブ化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treecell")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("font")}}</li>
+ <li>{{cssxref("visibility")}}</li>
+ <li>{{cssxref("color")}}</li>
+ <li>{{cssxref("text-decoration")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell/index.html
new file mode 100644
index 0000000000..e1ab2e64f0
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-cell/index.html
@@ -0,0 +1,35 @@
+---
+title: ':-moz-tree-cell'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-cell'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-cell'
+---
+<div>{{CSSRef}}{{Non-standard_header}}</div>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treecell")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("background")}}</li>
+ <li>{{cssxref("border")}}</li>
+ <li>{{cssxref("margin")}}</li>
+ <li>{{cssxref("outline")}}</li>
+ <li>{{cssxref("padding")}}</li>
+ <li>{{cssxref("visibility")}}</li>
+</ul>
+
+<h2 id="参照">参照</h2>
+
+<ul>
+ <li><a href="/ja/docs/XUL/Tutorial/Styling_a_Tree">ツリーのスタイル付け</a></li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-column/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-column/index.html
new file mode 100644
index 0000000000..cec1fd82a2
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-column/index.html
@@ -0,0 +1,26 @@
+---
+title: ':-moz-tree-column'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-column'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-column'
+---
+<div>{{CSSRef}}{{Non-standard_header}}</div>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treecol")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("margin")}}</li>
+ <li>{{cssxref("visibility")}}</li>
+ <li>{{cssxref("text style")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-drop-feedback/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-drop-feedback/index.html
new file mode 100644
index 0000000000..18603774d5
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-drop-feedback/index.html
@@ -0,0 +1,25 @@
+---
+title: ':-moz-tree-drop-feedback'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-drop-feedback'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-drop-feedback'
+---
+<div>{{Non-standard_header}}{{CSSRef}}</div>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treerow")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("margin")}}</li>
+ <li>{{cssxref("visibility")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-image/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-image/index.html
new file mode 100644
index 0000000000..cf19d79e47
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-image/index.html
@@ -0,0 +1,31 @@
+---
+title: ':-moz-tree-image'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-image'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/:-moz-tree-image'
+---
+<div>{{CSSRef}}{{Non-standard_header}}</div>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treeitem")}}</li>
+ <li>{{XULElem("treecell")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("margin")}}</li>
+ <li>{{cssxref("list-style")}}</li>
+ <li>{{cssxref("position")}}</li>
+</ul>
+
+<h2 id="Examples" name="Examples">例</h2>
+
+<p><a class="external" href="http://forums.mozillazine.org/viewtopic.php?t=610762">Bookmark icons in the Places window - Mozillazine Forum</a></p>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-indentation/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-indentation/index.html
new file mode 100644
index 0000000000..f0b8edee2f
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-indentation/index.html
@@ -0,0 +1,24 @@
+---
+title: ':-moz-tree-indentation'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-indentation'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-indentation'
+---
+<p>{{CSSRef}}{{Non-standard_header}}</p>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treeitem")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("position")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-line/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-line/index.html
new file mode 100644
index 0000000000..058ae755d4
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-line/index.html
@@ -0,0 +1,25 @@
+---
+title: ':-moz-tree-line'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-line'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-line'
+---
+<p>{{Non-standard_header}}{{CSSRef}}</p>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treeitem")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("border")}}</li>
+ <li>{{cssxref("visibility")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-progressmeter/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-progressmeter/index.html
new file mode 100644
index 0000000000..a037c191bd
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-progressmeter/index.html
@@ -0,0 +1,25 @@
+---
+title: ':-moz-tree-progressmeter'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-progressmeter'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-progressmeter'
+---
+<div>{{Non-standard_header}}{{CSSRef}}</div>
+
+<p><code>type</code> 属性に <code>progressmeter</code> が設定されることによって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treecell")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("margin")}}</li>
+ <li>{{cssxref("color")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-row(hover)/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-row(hover)/index.html
new file mode 100644
index 0000000000..cda60c7101
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-row(hover)/index.html
@@ -0,0 +1,16 @@
+---
+title: ':-moz-tree-row(hover)'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-row(hover)'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-row(hover)'
+---
+<p>{{Non-standard_header}}{{ CSSRef() }}{{ Fx_minversion_header(3) }}</p>
+
+<h2 id="Summary" name="Summary">概要</h2>
+
+<p>マウスカーソルが tree 行の上に合わせてあるとき、<code>:-moz-tree-row(hover)</code> は要素にマッチします。</p>
+
+<p>このセレクタは主にテーマ開発者によって使用されるものです。</p>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-row/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-row/index.html
new file mode 100644
index 0000000000..ff4d962ceb
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-row/index.html
@@ -0,0 +1,48 @@
+---
+title: ':-moz-tree-row'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-row'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-row'
+---
+<p>{{CSSRef}}{{Non-standard_header}}</p>
+
+<p><code>-moz-tree-row</code> CSS <a href="/ja/docs/Web/CSS/Pseudo-elements">擬似要素</a>は、列の選択と tree 列のスタイル付けに使用されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treerow")}}</li>
+</ul>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<pre class="syntaxbox">treechildren::-moz-tree-row { <em>style プロパティ</em> }
+</pre>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("background")}}</li>
+ <li>{{cssxref("border")}}</li>
+ <li>{{cssxref("margin")}}</li>
+ <li>{{cssxref("outline")}}</li>
+ <li>{{cssxref("padding")}}</li>
+ <li>{{cssxref("display")}}</li>
+ <li>{{cssxref("-moz-appearance")}}</li>
+</ul>
+
+<h2 id="Examples" name="Examples">例</h2>
+
+<pre class="brush:css">treechildren::-moz-tree-row( foo bar )
+{
+    margin: 2%;
+}
+</pre>
+
+<p>...次の位置に適用されます...</p>
+
+<pre class="brush:html">  &lt;treerow properties="foo"&gt;...&lt;/treerow&gt;
+</pre>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-separator/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-separator/index.html
new file mode 100644
index 0000000000..3c3d83f284
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-separator/index.html
@@ -0,0 +1,26 @@
+---
+title: ':-moz-tree-separator'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-separator'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-separator'
+---
+<div>{{Non-standard_header}}{{CSSRef}}</div>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treeseparator")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("border")}}</li>
+ <li>{{cssxref("display")}}</li>
+ <li>{{cssxref("-moz-appearance")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-twisty/index.html b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-twisty/index.html
new file mode 100644
index 0000000000..50cb0808df
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/_doublecolon_-moz-tree-twisty/index.html
@@ -0,0 +1,30 @@
+---
+title: ':-moz-tree-twisty'
+slug: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-twisty'
+tags:
+  - CSS
+  - CSS Reference
+  - Non-standard
+translation_of: 'Mozilla/Gecko/Chrome/CSS/::-moz-tree-twisty'
+---
+<p>{{ CSSRef() }}{{Non-standard_header}}</p>
+
+<p><code>properties</code> 属性によって活性化されます。</p>
+
+<h2 id="Associated_Elements" name="Associated_Elements">関連付けられた要素</h2>
+
+<ul>
+ <li>{{XULElem("treecell")}}</li>
+</ul>
+
+<h2 id="Style_Properties" name="Style_Properties">Style プロパティ</h2>
+
+<ul>
+ <li>{{cssxref("border")}}</li>
+ <li>{{cssxref("margin")}}</li>
+ <li>{{cssxref("padding")}}</li>
+ <li>{{cssxref("display")}}</li>
+ <li>{{cssxref("list-style")}}</li>
+ <li>{{cssxref("position")}}</li>
+ <li>{{cssxref("-moz-appearance")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/display-xul/index.html b/files/ja/mozilla/gecko/chrome/css/display-xul/index.html
new file mode 100644
index 0000000000..4d48fdef55
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/display-xul/index.html
@@ -0,0 +1,61 @@
+---
+title: <display-xul>
+slug: Mozilla/Gecko/Chrome/CSS/display-xul
+tags:
+  - CSS
+  - CSS データ型
+  - CSS 表示
+  - Deprecated
+  - Firefox
+  - Gecko
+  - Mozilla
+  - Mozilla 拡張
+  - Non-standard
+  - Reference
+  - XUL
+translation_of: Mozilla/Gecko/Chrome/CSS/display-xul
+---
+<div>{{CSSRef}}{{Non-standard_Header}}{{Deprecated_Header(62)}}</div>
+
+<p class="summary">Firefox は以下の <code>-moz-</code> の接頭辞が付いた <a href="/ja/docs/Mozilla/Tech/XUL">XUL</a> 表示値に対応しています。</p>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<dl>
+ <dt><code>-moz-box</code> {{Non-standard_Inline}} {{Deprecated_Inline}}</dt>
+ <dd>XUL ボックス、 <code style="white-space: nowrap;">flex</code> とほぼ等価</dd>
+ <dt><code>-moz-inline-box</code> {{Non-standard_Inline}} {{Deprecated_Inline}}</dt>
+ <dd>XUL インラインボックス、 <code style="white-space: nowrap;">inline-flex</code> とほぼ等価</dd>
+ <dt><code>-moz-grid</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL グリッド</dd>
+ <dt><code>-moz-inline-grid</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL インライングリッド</dd>
+ <dt><code>-moz-grid-group</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL グリッドグループ</dd>
+ <dt><code>-moz-grid-line</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL グリッド線</dd>
+ <dt><code>-moz-stack</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL スタック</dd>
+ <dt><code>-moz-inline-stack</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL インラインスタック</dd>
+ <dt><code>-moz-deck</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL デッキ</dd>
+ <dt><code>-moz-popup</code> {{Non-standard_Inline}}{{Obsolete_Inline(62)}}</dt>
+ <dd>XUL ポップアップ</dd>
+</dl>
+
+<p>XUL 表示値はすべて、 <code style="white-space: nowrap;">-moz-box</code> および <code style="white-space: nowrap;">-moz-inline-box</code> を除き、 {{bug(1288572)}} で削除されました。詳しくは <a class="external" href="https://www.fxsitecompat.com/en-CA/docs/2018/most-of-non-standard-css-display-values-have-been-dropped/">this Firefox Site Compatibility post</a> をご覧ください。</p>
+
+<p> <code style="white-space: nowrap;">-moz-box</code> および <code style="white-space: nowrap;">-moz-inline-box</code> の値は、後に {{bug(879275)}} で削除される予定です。詳細は <a class="external" href="https://www.fxsitecompat.com/en-CA/docs/2018/display-moz-box-and-display-moz-inline-box-have-been-deprecated/">this Firefox Site Compatibility post</a> をご覧ください。</p>
+
+<h2 id="See_also" name="See_also">関連情報</h2>
+
+<ul>
+ <li>{{CSSxRef("display")}}</li>
+ <li>{{CSSxRef("&lt;display-inside&gt;")}}</li>
+ <li>{{CSSxRef("&lt;display-outside&gt;")}}</li>
+ <li>{{CSSxRef("&lt;display-listitem&gt;")}}</li>
+ <li>{{CSSxRef("&lt;display-internal&gt;")}}</li>
+ <li>{{CSSxRef("&lt;display-box&gt;")}}</li>
+ <li>{{CSSxRef("&lt;display-legacy&gt;")}}</li>
+</ul>
diff --git a/files/ja/mozilla/gecko/chrome/css/index.html b/files/ja/mozilla/gecko/chrome/css/index.html
new file mode 100644
index 0000000000..45808aee2a
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/css/index.html
@@ -0,0 +1,21 @@
+---
+title: CSS
+slug: Mozilla/Gecko/Chrome/CSS
+tags:
+  - CSS
+  - Chrome
+  - Gecko
+  - Mozilla
+  - NeedsTranslation
+  - TopicStub
+translation_of: Mozilla/Gecko/Chrome/CSS
+---
+<div>{{FirefoxSidebar}}</div>
+
+<p class="summary">This page lists CSS properties that are only available in Gecko Chrome code (and sometimes in other privileged circumstances, eg. UA stylesheets.)</p>
+
+<div class="note">
+<p><strong>Note</strong>: Most of the CSS properties exposed to the Web in general are also usable in Chrome stylesheets: see the <a href="/en-US/docs/Web/CSS">CSS documentation</a> for a list of these.</p>
+</div>
+
+<p>{{SubpagesWithSummaries}}</p>
diff --git a/files/ja/mozilla/gecko/chrome/index.html b/files/ja/mozilla/gecko/chrome/index.html
new file mode 100644
index 0000000000..af4f7182cf
--- /dev/null
+++ b/files/ja/mozilla/gecko/chrome/index.html
@@ -0,0 +1,17 @@
+---
+title: Gecko Chrome
+slug: Mozilla/Gecko/Chrome
+tags:
+  - Chrome
+  - Gecko
+  - Mozilla
+  - NeedsTranslation
+  - Overview
+  - TopicStub
+translation_of: Mozilla/Gecko/Chrome
+---
+<div>{{FirefoxSidebar}}{{Draft}}</div>
+
+<p class="summary">This page contains information specific to Chrome code running in Gecko.</p>
+
+<p>{{SubpagesWithSummaries}}</p>