Extensions are like apps for your browser.
They add features to Firefox to make browsing faster, smarter, or just plain fun.
Google Keep Notes
Google Keep Notes brings Google Keep right into your Firefox Sidebar.
13,765 users
Timer (alarm, timer and stopwatch)
Stylish timer combined with stopwatch and alarm for your browser.
2,857 users
Note Taker
Adds a text box to a toolbar button for taking notes
2,731 users
Sticky Notes
Simple sticky notes utility which provides facility to make small notes of any thing.
1,017 users
Flash-HTML5 Player for YouTube™
Play YouTube™ Videos in Flash or HTML5 Player
43,745 users
Turn Off the Lights
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.
46,289 users
Dark YouTube Theme - Black Skin for YouTube & FB
Dark YouTube theme - apply Black Youtube & Facebook Skin. Dark YouTube theme protects eyes by changing Youtube & FB colors to black
12,824 users
Social Fixer
Social Fixer for Facebook fixes annoyances, adds features, and enhances existing functionality to make FB more fun and efficient. Filter the news feed, hide sponsored posts and political posts, hide parts of the page you don't want to see, and more!
17,040 users
RSSPreview
Preview RSS feeds in browser
2,268 users
Brief
Brief makes reading RSS feeds as easy and intuitive as it gets. Designed to have exactly the right set of features, it is powerful and simple at the same time. Feeds are presented on a seamless, interactive page which let's you bookmark and tag items with a single click.
11,322 users
Feed Preview
Indicates available RSS and Atom feeds and renders previews.
1,765 users
mPage
Simple dashboard-like RSS feed reader.
435 users
Eyes Alarm
Notice you it's time to take a break!
1,370 users
Hydrator
Hydrator reminds you to drink water with a preset time using simple browser notifications!
991 users
Take a Break
This add-on helps you to remember to take breaks at regular intervals. You can select from a list of options to receive a notification to stretch up/ go for a walk after every 30 mins, 1 hour, 2 hours or 3 hours.
546 users
Healthy Back
Healthy Back is your personal assistant who reminds you to sit up straight.
397 users