Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
The first and only download manager/accelerator built inside Firefox!
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
The Web Developer extension adds various web developer tools to the browser.
Are you concerned about your privacy? Or, are you blocked from some websites by a firewall? And, are you arming yourself with a proxy? In that case, AutoProxy is designed for you! A tool to help you use your proxy automatically & efficiently.
Tired of going to History -> Recently Closed Tabs just to undo a closed tab? Then this extension is for you!
This extension allows you to undo closed tabs via a toolbar button or the right-click context menu.
True "Send Later" functionality to schedule the time for sending an email.
Collector's Note Thunderbird
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
Thunderbird Message Filter Import/Export is a thunderbird/mozilla extension to import/export message filters.
This extension adds a new "FaviconizeTab" option to the context menu of the tab...
Collections are groups of related add-ons that anyone can create and share.Explore Collections