Power Thesaurus
Use the power of synonyms by button in toolbar, right-click or by word selection on any page.
1,845 users
Simple Gesture for Android
Adds touch gestures for Android. (P.S. "Quick Gestures" is great addon. I hope it be updated.)
1,836 users
Time Tracker - Web Habit Builder
Track time, analyze your habits and block addictive sites
1,620 users
Adblock Plus
One of the most popular free ad blockers for Firefox. Block annoying ads on sites like Facebook, YouTube and all other websites. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
3,094,610 users
Easy Screenshot
Capture a screenshot of the whole webpage, and save in your desktop in default.
1,793,817 users
AdBlocker Ultimate
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
1,310,596 users
AdBlock for Firefox
The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.
1,295,870 users
