About this Collection
My favorite add-ons
62 Add-ons in this Collection
Finally, an efficient blocker. Easy on CPU and memory.
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Tumblr, and many, many other sites. You can even customize Firefox and other programs themselves.
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
With EPUBReader you can read ePub files just in Firefox. No additional software needed!
Allows bidirectional access to Google Calendar
This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.
OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.
Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
Screengrab! saves webpages as images.
New features: upload to internet
Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.
— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!