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!
Use the Evernote Web Clipper to save things you see on the web into your Evernote account.
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!
Evernote Clearly makes blog posts, articles and webpages clean and easy to read. Save them to Evernote to read anywhere.
AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.
Answers.com’s 1-Click Answers ™ saves you time by instantly delivering the information you’re looking for. Point at any word, hold the Alt key (Ctrl in Linux) and click. A pop-up will appear on the screen, explaining the term.
Collections are groups of related add-ons that anyone can create and share.Explore Collections