Recently Updated Extensions
RequestPolicy Continued No Restart
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.
YouTube Video Replay No Restart
YouTube Video Replay is a new tool that lets you replay YouTube Videos.
RemindMeBot-Reddit No Restart
All the great features of /u/RemindMeBot in a quick and easy to use extension!
AdNauseam No Restart
Fight back against advertising surveillance
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Support: Thunderbird and SeaMonkey
Hide Fullscreen Alert No Restart
Hide Fullscreen Alert
Stop Watch timer (Sea Monkey) No Restart
Stop Watch timer for Sea Monkey
Tasks Scheduler (Sea Monkey) No Restart
Keep a list of your important todo list in one place.
Big Navigation No Restart
enlarging the navigation links on the pages
uMatrix No Restart
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
Gmail Mail Sidebar No Restart
Gmail Mail Sidebar brings Gmail right into your Firefox Sidebar.
Facebook Share Button No Restart
Facebook Share Button lets you share any web page on your Facebook Timeline by a quick Facebook button.
S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.
New Feature: Language learning!
Google Reverse Image Search No Restart
Google Reverse Image Search is a simple tool that lets you search the images reversely on Google Images and find the other copies of the very image you are looking for on the web.
Open With Google Chrome No Restart
Open With Google Chrome sends pages from Mozilla Firefox to Google Chrome.
Open With Photoshop No Restart
Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.
uBlock Origin No Restart
Finally, an efficient blocker. Easy on CPU and memory.
Classic Toolbar Buttons No Restart
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.
Beta builds on versions page!
AdSidebar No Restart
Live in harmony with ads.
AdSidebar is an alternative to traditional ad blocker extensions that benefits both the user and content creators. Ads are displayed in a sidebar on the right side of the screen.