Block online ads while browsing with Firefox.
Shorten links on the fly with Goo.gl, Google's URL shortener.
Allow active content to run only from sites you trust.
Save your Firefox sessions and restore the state of all windows.
Remove Timeline from Facebook with this Firefox add-on.
Browse faster by speeding up common tasks.
Access websites blocked in your country, company or school.
Modify application menus for your browser.
Add menus and a toolbars with various web developer tools to Firefox.
Save Web pages locally and manage collections easily.
Check out this lightweight RSS and Atom feed aggregator extension for Mozilla Firefox.
Create and post HTTP requests on your favorite Web service or site.