Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
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Choose from thousands of extra features and styles to make Firefox your own.
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Ghostery
This add-on is not compatible with your version of Firefox because of the following:
Increase your browsing privacy, protection, and speed.
1,360,123 users -
Emoji Cheatsheet
This add-on is not compatible with your version of Firefox because of the following:
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook.
Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.87,970 users -
User-Agent Switcher
This add-on is not compatible with your version of Firefox because of the following:
Quickly and easily switch between popular user-agent strings.
63,746 users
Most Popular See all »
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The best security you can get in a web browser!This add-on is not compatible with your version of Firefox because of the following:
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.2,143,341 users -
Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...This add-on is not compatible with your version of Firefox because of the following:
1,868,943 users -
Increase your browsing privacy, protection, and speed.This add-on is not compatible with your version of Firefox because of the following:
1,360,123 users -
Automate Firefox. Record and replay repetitive tasks. If you're tired of manually visiting the same sites, filling out forms, downloading files and extracting data, then iMacros is for you! Save time, effort and money with iMacros browser automation!This add-on is not compatible with your version of Firefox because of the following:
1,247,116 users -
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.This add-on is not compatible with your version of Firefox because of the following:
534,767 users -
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!This add-on is not compatible with your version of Firefox because of the following:
463,761 users
Top Rated See all »
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Open With Photoshop is a new companion for web and graphic designers to open up any web image with Adobe Photoshop via a single and quick mouse click.This add-on is not compatible with your version of Firefox because of the following:
15,762 users -
Does everything for an HTML table: Copy (table/row/column/cell), Sort (multi-column), Search (regex, range operations ...), Filter, Chart, Statistics, Rearrange, Combine/Compare. To use: Right click in a real HTML table for the "tabletools2" option.This add-on is not compatible with your version of Firefox because of the following:
15,109 users -
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions.This add-on is not compatible with your version of Firefox because of the following:
Beta builds on versions page!37,627 users -
Control a new, trickier kind of cookie, better known as an LSO or Flash cookie. The BetterPrivacy safeguard offers various ways to handle Flash-cookies created by webpages with the help of your Flash plug-in...This add-on is not compatible with your version of Firefox because of the following:
445,199 users -
Download files using curl or wget. This addon generates curl/wget commands that emulate the request as though it's coming from your browser allowing you to download protected files directly to a separate machine (e.g. server).This add-on is not compatible with your version of Firefox because of the following:
7,937 users -
Adds a new page that shows add-on memory usageThis add-on is not compatible with your version of Firefox because of the following:
11,685 users
Recently Added See all »
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Undo a closed Tab(s) or create a duplicate of your current TabThis add-on is not compatible with your version of Firefox because of the following:
0 users -
Yet, just another jsonviewer plugin for Firefox.This add-on is not compatible with your version of Firefox because of the following:
0 users -
Toggle JavaScript engine on and off the easy wayThis add-on is not compatible with your version of Firefox because of the following:
0 users -
Prakash Screen-sharing extThis add-on is not compatible with your version of Firefox because of the following:
4 users -
Simulate color blindness in your web browser.This add-on is not compatible with your version of Firefox because of the following:
2 users -
Change text or background color of any open tab
This add-on is not compatible with your version of Firefox because of the following:
4 users
See all 2303 extensions in Web Development »
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