Measure-it
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
27,560 users
Imagus
With a simple mouse-over you can enlarge images and display images/videos from links.
62,027 users
CanvasBlocker
Alters some JS APIs to prevent fingerprinting.
28,324 users
Download Manager (S3)
View and manage downloads from a tidy status bar.
62,585 users
967 users
656 users
202 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
663,935 users
Privacy Badger
Automatically learns to block invisible trackers.
1,459,122 users
Grammar and Spell Checker - LanguageTool
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.
397,497 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
374,430 users
Grammar and Spell Checker - LanguageTool
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.
397,497 users
Search by Image
A powerful reverse image search tool, with support for various search engines, such as Google, Bing, Yandex, Baidu and TinEye.
374,430 users
Dictionary Anywhere
View definitions easily as you browse the web. Double-click any word to view its definition in a small pop-up bubble. It also supports Spanish, German, French language alongside English. Enjoy Reading Uninterrupted!!!.
44,358 users
LeechBlock NG
LeechBlock NG is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
80,405 users
447 users
729 users
881 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
58,783 users
Augmented Steam
Augments your Steam Experience
58,561 users
Steam URL Opener
Allows you to open URLs inside Steam Client to save the hassle of logging in normal browser (with a single click on a button).
5,001 users
ProtonDB for Steam
Shows ratings from protondb.com on Steam
3,216 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
555,899 users
600% Sound Volume
Up to 600% volume boost
170,146 users
Global Speed
Set a default speed for video and audio.
68,319 users
YouTube mp3
The YouTube-mp3 Add-on generates a "MP3" button on YouTube. Convert YouTube to mp3 and download the file to your device.
36,081 users