Add links to Firefox app

assets/javascripts/templates/pages/about_tmpl.coffee

@@ -66,6 +66,7 @@ app.templates.aboutPage = -> """
   <h2 class="_lined-heading" id="plugins">Plugins and Extensions</h2>
   <ul>
     <li><a href="https://chrome.google.com/webstore/detail/devdocs/mnfehgbmkapmjnhcnbodoamcioleeooe">Chrome web app</a>
+    <li><a href="https://marketplace.firefox.com/app/devdocs/">Firefox web app</a>
     <li><a href="https://sublime.wbond.net/packages/DevDocs">Sublime Text plugin</a>
     <li><a href="https://github.com/gruehle/dev-docs-viewer">Brackets extension</a>
   </ul>

assets/javascripts/templates/pages/news_tmpl.coffee

@@ -24,7 +24,10 @@ newsItem = (date, news) ->
   result
 
 app.news = [
-  [ 1389484800000, # January 12, 2013
+  [ 1390003200000, # January 18, 2013
+    """ DevDocs is now available as a <a href="https://marketplace.firefox.com/app/devdocs/">Firefox web app</a> (currently requires Aurora). """,
+  ], [
+    1389484800000, # January 12, 2013
     """ Added <code class="_label">Alt + g</code> shortcut for searching on Google. """,
     """ Added <code class="_label">Alt + r</code> shortcut for revealing the current page in the sidebar. """
   ], [

assets/javascripts/templates/pages/root_tmpl.coffee.erb

@@ -39,7 +39,7 @@ app.templates.intro = """
       <li>The search supports fuzzy matching (e.g. "bgcp" brings up "background-clip")
       <li>To search a specific documentation, type its name (or an abbreviation), then Tab
       <li>You can search using your browser's address bar &mdash; <a href="/help#browser_search">learn how</a>
-      <li>DevDocs works on mobile and is available as a <a href="https://chrome.google.com/webstore/detail/devdocs/mnfehgbmkapmjnhcnbodoamcioleeooe">Chrome web app</a>
+      <li>DevDocs works on mobile and can be installed on <a href="https://chrome.google.com/webstore/detail/devdocs/mnfehgbmkapmjnhcnbodoamcioleeooe">Chrome</a> and <a href="https://marketplace.firefox.com/app/devdocs/">Firefox</a>.
       <li>For the latest news, subscribe to the <a href="http://eepurl.com/HnLUz">newsletter</a> or follow <a href="https://twitter.com/DevDocs">@DevDocs</a>
       <li>DevDocs is free and <a href="https://github.com/Thibaut/devdocs">open source</a>
           <iframe class="_github-btn" src="http://ghbtns.com/github-btn.html?user=Thibaut&repo=devdocs&type=watch&count=true" allowtransparency="true" frameborder="0" scrolling="0" width="100" height="20"></iframe>