PDF.js brings Portable Document Format (PDF) reading capabilities to your browser using web standard technologies.
Please report issues to: https://github.com/mozilla/pdf.js/issues
Converts YouTube flash videos to HTML5.
UPD: it seems that youtube player has been fixed, and this plugin is not needed anymore.
Status bar widgets and progress indicators for Firefox 4+
Open Bookmarks/History/Homepage/URL/Search in new tabs, and more utilities for tabbed browsing, including Protect/Lock/Faviconize/Unload Tab, Reload Every, Select and manipulate multiple tabs simultaneously, Tab Stacking/Coloring, etc.
Toolbar button that lets you disable and re-enable Flash with just one click.
The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.
Add more items to Add-ons Manager context menu.
Bring back your personal and powerful Firefox Button!
This add-on is used to set your YouTube video quality global preference.
E.g.: If you want all your videos on YouTube to play on 480p just set it in the addon and you're on.
Supports all video qualities.
You are annoyed to keep on typing "about:…"-URLs or can't remember the right one?
Use "What about:…" to have all those "about:…"-URLs in your Add-On bar.
» Optimized for Australis UI!
Hide(block) site specific unwanted results of Google Search
Also support Bing Search