Up & Coming Extensions
XDM Hook Requires Restart
XDM integration module for Firefox
This add-on is intended to ease the life of the regular MEGA user.
Please note this extension is NOT the official from Mega, for the real one please go to: https://mega.nz/#firefox
Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.
Add-ons Manager Context Menu Requires Restart
Add more items to Add-ons Manager context menu.
Adds submenus for flipping or rotating to the image context menu.
Ad Blocker lets you block all ads, tracking & malware from the web world. It is an effective solution to browse the web without offensive and annoying ads you hate to see.
This add-on provides quick access to Alexa's Top Sites.
Lets the user direct the submission of a form to a new tab or window. [Bug #17754]
XDM Helper Requires Restart
Xtreme Download Manager integration module to take over downloads and streaming videos from Firefox
This Addon simply adds a dropdown button that lets you download YouTube Videos in various Formats. Download YouTube Videos in FLV, 3GP, MP3, MP4, 720p, 1080p in a single click.
AutoProxy-ng Requires Restart
This is a fork of AutoProxy, which can run the latest version of Firefox.
Now with 1080p Full-HD Support!
Download every YouTube video you want and you can download them as Full-HD MP4, FLV, 3GP, MP3 128kbps and 192kbps, M4A and AAC formats. Also thumbnails and subtitles can be downloaded! Easy and Fast!
By blocking annoying ads and nosy trackers, adaware ad block nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.
PlayFlash 32bit Requires Restart
Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.
Google Keep Notes brings Google Keep right into your Firefox Sidebar.
Persona Switcher Requires Restart
Quickly switch between your personas or reset it back to the default via a menu or the keyboard. You can also automatically rotate through all of your themes on a time interval you select. Works for Firefox, Thunderbird, and Seamonkey.
Autoplay Toggle NonRestartless Requires Restart
This extension performs the same function as Autoplay Toggle, but as a legacy overlay extension. This should work in cases where Autoplay Toggle doesn't. SeaMonkey and Pale Moon are supported.
Add menu commands for replying to multiple messages at the same time.
Composer Open In Requires Restart
Adds a toolbar button to Composer to open the current file in another editor or browser.