LanguageTool Grammar Checker
With this extension you can check text with the free style and grammar checker LanguageTool. It finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word.
52,043 users
Enhancer for YouTube™
Tons of features to improve your user experience on YouTube™.
380,301 users
Dictionary (Google™ Translate) Anywhere
"Dictionary (Google™ Translate) Anywhere" extension provides access to a floating multilingual Google Translate panel on any webpage.
28,047 users
Easy Youtube Video Downloader Express
WORKS WITH NEW YOUTUBE LAYOUT, "Best Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.
342,865 users
Google Translator for Firefox
With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.
577,184 users
To Google Translate
Right-click on a section of text and click on Translate icon next to it to translate or listen it to your language.
283,426 users
S3.Translator
S3.Translator adds the power of Google Translate’s automatic translations to your browser! It supports translation of selected text, entered phrase or whole webpage between any of 100+ languages. New Feature: Language learning!
310,322 users
Page Translate
Translate whole page using Google Translate
10,616 users
Ghostery – Privacy Ad Blocker
Ghostery is a powerful privacy extension. Block ads, stop trackers and speed up websites.
1,217,863 users
Facebook Container
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.
323,125 users
Privacy Badger
Protects your privacy by blocking spying ads and invisible trackers.
414,382 users
Web Security
Web Security actively protects you from malware, tampered websites or phishing sites that aim to steal your personal data.
299,946 users
Tree Style Tab
Show tabs like a tree.
127,684 users
New Tab Override (WebExtension)
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
126,681 users
Tab Auto Refresh
Automatically refresh tabs based on custom time intervals
40,644 users
OneTab
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
69,675 users