Instantly check or copy computed CSS from any element
All your articles, photos, video & content from web & apps in one place.
Browser extension that makes GitHub cleaner & more powerful
Build cross browser extensions for Chrome, Firefox & Opera
Take control of all your Facebook data
Browser extension that automagically searches for coupons
Colorful filters uses css blend modes inspired by Spotify
A browser extension to identify and try fonts on any website
Make TweetDeck even better with emojis, thumbnails and more
Search great domain names for your website in seconds.
Automatically close tabs you have ignored for too long
Take, save & share screenshots without leaving Firefox