Add-ons
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.
CloseMost Popular All »
- 1. Adblock Plus 17,698,874 users
- 2. Video DownloadHelper 6,201,537 users
- 3. Firebug 2,616,201 users
- 4. NoScript Security Suite 2,265,579 users
- 5. Greasemonkey 1,801,849 users
- 6. DownThemAll! 1,569,428 users
- 7. Web of Trust - WOT 1,337,641 users
- 8. Flash Video Downloader - Full HD Download 1,299,015 users
- 9. FlashGot Mass Downloader 1,288,335 users
- 10. Adblock Plus Pop-up Addon 1,165,125 users
Featured Extensions See all »
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AddThis for Firefox is the best add-on to make sharing and bookmarking simple. Have all your favorite web 2.0 social networking, bookmarking, blogging, and e-mail services at your fingertips. Share any page, anytime, with anyone.This add-on is not compatible with your version of Firefox because of the following:
165,475 users -
Stratiform is the ultimate user friendly customization add-on for Firefox. It puts the power in the average user's hands to customize the browser's look.This add-on is not compatible with your version of Firefox because of the following:
31,050 users -
Adds metadata and sortable tags to the password manager.This add-on is not compatible with your version of Firefox because of the following:
3,229 users -
S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!This add-on is not compatible with your version of Firefox because of the following:
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.169,225 users -
Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.This add-on is not compatible with your version of Firefox because of the following:
33,880 users -
The entire page will be fading to dark, so you can watch the video as if you were in the cinema.This add-on is not compatible with your version of Firefox because of the following:
103,736 users -
With EPUBReader you can read ePub files just in Firefox. No additional software needed!This add-on is not compatible with your version of Firefox because of the following:
446,032 users -
Wired-Marker(http://www.wired-marker.org/en/) is a permanent (indelible) highlighter that you use on Web pages. The highlighter, which comes in various colors and styles, is a kind of electronic bookmark that serves as a guide when you revisit a Web ...
This add-on is not compatible with your version of Firefox because of the following:
11,960 users -
LeechBlock is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
This add-on is not compatible with your version of Firefox because of the following:
74,751 users -
A productive way to organize, read and share the content of your favorite feeds, blogs and news sites. Feedly offers a seamless transition from Google Reader.
This add-on is not compatible with your version of Firefox because of the following:
169,356 users -
Listen to unlimited, free music with FireTube.
This add-on is not compatible with your version of Firefox because of the following:
Simply search the artist or song of your choice and enjoy.
Download the Android version here.30,530 users -
This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.
This add-on is not compatible with your version of Firefox because of the following:
47,682 users -
Adds private tabs.
This add-on is not compatible with your version of Firefox because of the following:
64,205 users -
Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...
This add-on is not compatible with your version of Firefox because of the following:
Latest updates: See bottom link 'version history'!622,842 users -
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
This add-on is not compatible with your version of Firefox because of the following:
82,507 users -
A Statusbar with speed, percentage, time and loaded size (similar to Opera's one)
This add-on is not compatible with your version of Firefox because of the following:
75,209 users -
Creates one Pdf from any amount of open Browsertabs,Bookmarks/-folder, Scrapbook(Plus) pages. This document can be archived, sended by e-mail or printed out with any standard Pdf Viewer.
This add-on is not compatible with your version of Firefox because of the following:
126,461 users -
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
This add-on is not compatible with your version of Firefox because of the following:
1,288,335 users
Up & Coming Extensions See all »
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Notifies you of sites affected by the Heartbleed vulnerability via an icon in the location bar.This add-on is not compatible with your version of Firefox because of the following:
1,189 users -
A Firefox add-on to notify you when you visit a webpage vulnerable to HeartbleedThis add-on is not compatible with your version of Firefox because of the following:
1,706 users -
Translate entire web page or selected text using google translateThis add-on is not compatible with your version of Firefox because of the following:
There are many translators on Firefox. There are two features they're not supported:
1.HTTPS pages
2.Page logined
This addon can translate all pages you can open in firefox7,212 users -
Allows manipulation of the playback rate of HTML5 videosThis add-on is not compatible with your version of Firefox because of the following:
19,143 users -
Keep your menus in check by filtering out items you never use.This add-on is not compatible with your version of Firefox because of the following:
2,478 users -
To detect the URL of the streaming audio and video, so that you can copy from the page context menu.This add-on is not compatible with your version of Firefox because of the following:
10,385 users -
This addon help you to block facebook ads and change your facebook to a new look
This add-on is not compatible with your version of Firefox because of the following:
2,460 users -
Hide Firefox User Interface.
This add-on is not compatible with your version of Firefox because of the following:
1,808 users -
Double-click any image to download it quickly and quietly.
This add-on is not compatible with your version of Firefox because of the following:
1,261 users -
Downloading videos from popular sites (e.g. YouTube, Vimeo, etc).
This add-on is not compatible with your version of Firefox because of the following:
37,278 users -
Want to save money shopping online?
This add-on is not compatible with your version of Firefox because of the following:
Automatically get the best prices, coupons & promo codes.
✔ Uses HTTPS
✔ Automatically get the best prices & coupon codes
✔ Works on search engines
✔ Product information
Safe · Discreet · 100% Free14,823 users -
Loop HTML5 Video and Music.
This add-on is not compatible with your version of Firefox because of the following:
1,816 users -
Adds a toolbar button to exit Firefox...
This add-on is not compatible with your version of Firefox because of the following:
2,946 users -
Permanently hides the Ads panel in the right side of New Yahoo! Mail, the 'Sponsored' email at the Top, and ads at the Left to give you a full-width Premium email experience for free! The other option, of course is to pay $50 a year to Yahoo! Inc. :)
This add-on is not compatible with your version of Firefox because of the following:
5,182 users -
Gives you a place to put all your add-on buttons without over-crowding the navigation bar.
This add-on is not compatible with your version of Firefox because of the following:
1,918 users -
Implements the loop attribute for HTML5 videos/audios and adds an item to control it from the context menu.
This add-on is not compatible with your version of Firefox because of the following:
1,106 users -
Blocks casino related websites and displays an awareness page.
This add-on is not compatible with your version of Firefox because of the following:
2,023 users -
YouTube Control Center is an open-source project that aims to enhance the overall YouTube experience by providing the end user with more control in what the playback process is concerned.
This add-on is not compatible with your version of Firefox because of the following:
1,198 users
Featured Themes See all »
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Four Seasons Breeze
1,080 users -
lace
48 users -
Burst Of Flavours
65 users -
Where the Wildflowers Bloom
99 users -
mozilla firefox fire - fuego
5,824 users -
fractal sea foam
3,250 users -
Sails at Sunset
2,921 users -
horizon in yellow
2,846 users -
Cats on the Couch
2,451 users -
fractal waltz of the fireflies
113 users -
Abstraction Distraction
61 users -
Spring_Damask
1,241 users -
Summer Fence
91 users -
Blue,white triangles
3,286 users -
Gravity's Rainbow
1,346 users -
答应了苏苏要做的
1,595 users -
Easter pattern
2,913 users -
behind curtain
146 users
Featured Collections See all »
To create your own collections, you must have a Mozilla Add-ons account.
