Lightbeam is a Firefox add-on that enables you to see the first and third party sites you interact with on the Web. Using interactive visualizations, Lightbeam shows you the relationships between these third parties and the sites you visit.
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
View mobile or desktop versions of sites, by impersonating other browsers' useragent headers.
Anything between simple tweaks such as placing the findbar in the top corner, to the powerful "Find in All Tabs" tool, FindBar Tweak will make your find toolbar "just right"!
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart FIrefox or Seamonkey.
A really generic user agent switcher, no restart required.
Mozilla Firefox with Twitter instantly connects you with what's happening in the world. Search people and topics on Twitter using @ and # from the address bar.
Provides the ability to block specific image requests easily.
This jetpack allows you to quickly translate text with Google Translate.
Adds a small badge to your tabs to alert you to (for example) new messages on Facebook. The badge is also visible when the tabs are pinned so you can see when there's something new available.
Install Browser Extensions straight from GitHub Repositories