To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Washington State University Cougars Theme No Restart
This is the OFFICIAL licensed browser theme designed especially for Washington State University athletics fans. You'll enjoy a stunning Washington State University theme, quick links to the best of Cougars athletics and a sidebar for the latest!
Spazs Streamers No Restart
An addon that monitors the Spaz's Streamers team on twitch.tv and displays the online channels. Updates every 5 minutes.
Surface Area of a Sphere No Restart
Computes surface area of sphere based on given radius of the sphere. Also calculates Volume.
This is a upgrade of 1.5.1 version not updated by the original creators.
Steuerung für Reptobot
Esta es la primera de muchas extenciones para mozilla firefox de Hugo Gonzalez
SentryDNS No Restart
For SentryDNS Subscribers.
Online Chess Games No Restart
Play Online Chess Games with Computer, with your friends or with other across the world.
Online Jigsaw Puzzles No Restart
Many Different Jigsaw Puzzles to be solved on-line
Test Speed No Restart
Test internet download speed by downloading image from any of your frequently visited sites. Provide image link and size for test
login No Restart
a basic add-on
motest No Restart
a basic add-on
Homply helps you manage your home search
Ever tired of searching Google for finding out the synonym of a word...Try out this add-on, it saves you the time as you can view the synonym of the word by just selecting and right clicking on it ! Moreover this addon does not rely on the internet !
RedditBooru No Restart
Browser extension for RedditBooru
Online Picture Games and Puzzles No Restart
Play with pictures to solve puzzles and solve puzzles to create pictures.
Can the puzzles be made using pictures? Or can pictures be made after solving puzzles. The answer to both the questions is yes and one will find both types of puzzles here.
Volume of a Cylinder No Restart
Compute volume of a cylinder given radius of base and height of the cylinder.
Educational Games No Restart
Educational Games, Clueless Crossword, Math Lines, Cup Stacking, Missing Jigsaw, Musical Notes, Math Search, SEEK and Find, Crossword, Word Scramble, Broken Words, Code Breaking, Periodic Table, Memory Game, Clueless Crossword ,Color Mixing, Sudoku.