To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseFilter Results
-
Category
-
Works with
-
Tag
4,766 matching results
Search
Sort by:
Brazilian Portuguese Dictionary (Former Spelling)
The same spellchecker shipped with the Brazilian version of Firefox, just using the former spelling (which is valid until January 1st 2016).
GenScript Search
This is an officially supported GenScript Search Add-on, provided by GenScript. The GenScript Search Add-on can enable you get access to comprehensive biology services, products, and useful bioinformatics tools much more easily and conveniently.
Webmaster SAPE Requires Restart
Toolbar contains a set of functions, which expands the abilities of webmasters and optimizers, when working in the interface of SAPE exchange.
100 Search Engines for Firefox
Why use one search engine like Google, Yahoo, or Bing when you can have those search engines, plus piles of other search engines. Why Searchalot? Over 100 search engines for you to use to find what you are looking for on the Internet.
Proxy Tool Requires Restart
Proxy Tool - Powerful, yet User-friendly proxy tool to manage your proxies and anonymity needs, including: 46M+ user agents (world's largest), 10 different spoofed HTTP referrers, auto-proxy rotation, plus many more. Developed by http://ProxyList.co
Forecastfox Weather Requires Restart
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
www.Translate Requires Restart
Multi-Translator from Google, Bing and Pragma.
Translation tool for your Firefox and Thunderbird with a simple and friendly interface.
DuckDuckGo (HTML SSL)
DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension adds DuckDuckGo (non-JS HTML version) to the search bar. For more features, see the DuckDuckGo Plus add-on. Enjoy!
YouTube Downloader For Android
Search Addon For Firefox App
Search YouTube Videos, YouTube Downloader ( Also Search Video ) For Android FREE
Any Time Any Where YOutube Downloader at your device
Set Default Search : Go Firefox Setting > Search > Click on YouTube Downloader ..
Old Default Image Style
Restores the default image style used for top-level images in previous versions of Firefox.
German dictionary (de_AT)
German dictionary igerman98 (de_AT, Austria), for Firefox, Thunderbird und Seamonkey.
To create your own collections, you must have a Mozilla Add-ons account.