Most Popular Extensions


URL Fixer No Restart Featured

URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.

Rated 4 out of 5 stars (101)
16,415 users

Print Friendly & PDF No Restart

Makes a Printer Friendly & PDF version of any webpage. Removes navigation, ads, and junk. Formats the page for print so you save paper and ink. Good for the environment and your wallet.

Rated 3 out of 5 stars (22)
16,401 users

Speed Tweaks (SpeedyFox) No Restart

This extension provides a list to almost all the settings that you may need to alter in order to enhance Firefox's speed.

Rated 5 out of 5 stars (6)
16,093 users


"Restart" menu and button, with configurable shortcut key.

Rated 5 out of 5 stars (39)
15,838 users

Simple Youtube HTML5 Video Player No Restart

YouTube video player sucks a lot, this basic video player sucks less

NOTE: this extension will be deprecated in favor of "HTML5 Video EveryWhere" extension

Rated 4 out of 5 stars (19)
15,621 users

Full Screen mobile No Restart

Make Firefox for Android use the whole screen

Rated 3 out of 5 stars (87)
14,755 users

Open With Google Chrome No Restart

Open With Google Chrome sends pages from Mozilla Firefox to Google Chrome.

Rated 5 out of 5 stars (3)
13,682 users

HTML5 YouTube Everywhere No Restart

Get rid of legacy Flash based embedded YouTube videos and replace them with YouTube's HTML5 player. Works even if you have Flash on.

Support for replacing the player on YouTube site is in development.

Rated 4 out of 5 stars (11)
13,640 users

Toggle animated GIFs No Restart

Start/stop GIF animations through a keyboard shortcut or by clicking them. You can also restart animations from the beginning, or disable animations by default.

Rated 5 out of 5 stars (52)
13,557 users

Searchonymous No Restart

Search anonymously on Google, while keeping your search preferences and stay logged in on services such as Youtube, Gmail, etc.

Rated 4 out of 5 stars (31)
13,339 users

Tap Translate No Restart Featured

Adds a translate button to the long-tap menu.

Rated 4 out of 5 stars (40)
12,167 users

CanvasBlocker No Restart

Blocks the JS-API for modifying <canvas> to prevent Canvas-Fingerprinting.</canvas>

Rated 4 out of 5 stars (20)
11,763 users

Privacy Settings No Restart

Alter Firefox's built-in privacy settings easily with a toolbar panel.

Rated 5 out of 5 stars (31)
11,431 users

Redirector No Restart

Automatically redirects to user-defined urls on certain pages

Rated 4 out of 5 stars (144)
11,014 users

Redirect Bypasser No Restart

Avoid redirects and has direct access to the sites you want to visit.

Rated 4 out of 5 stars (26)
9,879 users

Silent Block

Minimum and fast URL blocker by regular expression.

Rated 5 out of 5 stars (19)
9,307 users

Minimal Site Block No Restart

Block sites easily.

Rated 3 out of 5 stars (20)
9,179 users

Mobile Password Manager No Restart Featured

View and edit saved passwords on your phone, tablet or desktop.

Rated 4 out of 5 stars (34)
8,930 users

Smart Referer No Restart

Send referers only when staying on the same domain.

You can whitelist domains with wildcards and configure other things, look in the preferences page of the addon in the addon manager.

Rated 4 out of 5 stars (29)
8,588 users

InfoNotary Configurator for Mozilla

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 5 out of 5 stars (2)
8,297 users