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 21,705,909 users
- 2. Video DownloadHelper 5,703,520 users
- 3. Firebug 2,483,172 users
- 4. NoScript Security Suite 2,297,898 users
- 5. DownThemAll! 1,496,743 users
- 6. Ghostery 1,434,257 users
- 7. Greasemonkey 1,378,487 users
- 8. Adblock Plus Pop-up Addon 1,303,371 users
- 9. Web of Trust - WOT 1,244,127 users
- 10. Flash Video Downloader - YouTube HD Download [4K] 1,225,037 users
Featured Extensions See all »
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Automatically resumes YouTube videos from where you played them last. Without this extension, for example, when you click through YouTube videos, back and forth, they always start from the beginning.This add-on is not compatible with your version of Firefox because of the following:
24,892 users -
Integrates location bar and search bar into one. Shows search and url suggestions. Quickly switch search engine using search keywords. Provides different auto-complete popup styles for compact displays.This add-on is not compatible with your version of Firefox because of the following:
49,633 users -
Copy links to a page with one click, ready to paste anywhere else, eg. emails, blogs, forums and Twitter. Copy a single page, all open tabs or all links on a page.This add-on is not compatible with your version of Firefox because of the following:
24,966 users -
FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.This add-on is not compatible with your version of Firefox because of the following:
348,129 users -
Customize menus : Helps removing, moving and renaming menus and menu itemsThis add-on is not compatible with your version of Firefox because of the following:
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey10,718 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:
85,249 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:
93,603 users -
A quick and minimalistic way to create bookmarks.
This add-on is not compatible with your version of Firefox because of the following:
7,836 users -
— Open web pages saved with Internet Explorer or other browsers (MHT)
This add-on is not compatible with your version of Firefox because of the following:
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!199,724 users -
Speed up your web search & search via your address bar
This add-on is not compatible with your version of Firefox because of the following:
✔ get autocomplete ideas while typing
✔ get search results instantly as you type
✔ customize your own search-shortcuts
Instructional Video: http://y2u.be/W-BvOGf0kaM
Visit instantfox.net57,138 users -
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.
This add-on is not compatible with your version of Firefox because of the following:
759,105 users -
Ecosia is a search engine that donates 80% of its surplus income to a tree planting program in Burkina Faso.
This add-on is not compatible with your version of Firefox because of the following:
By searching with Ecosia you can help the environment for free.
This extension adds Ecosia as a search engine in Firefox. Give it a try!78,040 users -
Downloads YouTube videos in all available formats (FLV, MP4, WebM, and 3GP) with video quality of your choice. It also contains a pure JavaScript library to extract the ORIGINAL audio file embedded in video files.
This add-on is not compatible with your version of Firefox because of the following:
644,107 users -
Protects you from Phishing or Scams (through XSS injection attacks) while you're on Facebook™ - Version 4.2 introduces a Tracking Protection feature as well.
This add-on is not compatible with your version of Firefox because of the following:
44,692 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:
35,587 users -
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.
This add-on is not compatible with your version of Firefox because of the following:
24,454 users -
Reader is the ultimate Reader tool for Firefox.
This add-on is not compatible with your version of Firefox because of the following:
33,859 users -
View and manage downloads from a tidy statusbar
This add-on is not compatible with your version of Firefox because of the following:
This is a new life in Firefox 26+ for old well-known addon Download Statusbar
New Features: Replace Downloads Library page.
Now you have full control of your downloads history!113,295 users
Up & Coming Extensions See all »
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Axon provides access to the Wordnik dictionary and all Wikipedia articles in every language.This add-on is not compatible with your version of Firefox because of the following:
Double-click or select text to open the Wordnik dictionary definition in a speech balloon. If the word is not available Axon continues on Wikipedia.2,261 users -
Directly Download PDF without opening in the viewer.This add-on is not compatible with your version of Firefox because of the following:
19,320 users -
AdBlock for Gmail™ removes all annoying Ads and Banners from GmailThis add-on is not compatible with your version of Firefox because of the following:
5,447 users -
Block Ads Seamlessly on Facebook.comThis add-on is not compatible with your version of Firefox because of the following:
12,214 users -
Recherchez avec Lilo et Financez des projets sociaux et environnementauxThis add-on is not compatible with your version of Firefox because of the following:
2,255 users -
Google™ Translator LiteThis add-on is not compatible with your version of Firefox because of the following:
6,762 users -
Watch YouTube in the full-HD quality or the highest available one
This add-on is not compatible with your version of Firefox because of the following:
3,748 users -
An indicator showing HTTP/2 and SPDY support in the address bar.
This add-on is not compatible with your version of Firefox because of the following:
48,280 users -
Replace video player with Firefox native video player
This add-on is not compatible with your version of Firefox because of the following:
42,292 users -
WebRTC exposes your internal network IP(s), without user interaction.
This add-on is not compatible with your version of Firefox because of the following:
5,366 users -
Control http request referrer
This add-on is not compatible with your version of Firefox because of the following:
17,381 users -
Listen On Repeat Video Repeater adds a "repeat" button too your Firefox toolbar. Just go to any Youtube video, hit the "repeat" button, and you're set!
This add-on is not compatible with your version of Firefox because of the following:
1,485 users -
Firefox Interest Dashboard provides a colorful and interactive view of your interests based on your browsing history.
This add-on is not compatible with your version of Firefox because of the following:
1,635 users -
Instant access to your online shopping paradise. The more transaction you've made from our extension, the more point-cashback you'll get!
This add-on is not compatible with your version of Firefox because of the following:
1,862 users -
Hide Firefox User Interface.
This add-on is not compatible with your version of Firefox because of the following:
5,845 users -
Google™ Text-to-Speech is a text to speech engine with natural sounding voices.
This add-on is not compatible with your version of Firefox because of the following:
2,021 users -
Make your YouTube videos automatically play in 1080p HD, and add a download button.
This add-on is not compatible with your version of Firefox because of the following:
59,841 users -
Copy multiple URLs in anchors to clipboard.
This add-on is not compatible with your version of Firefox because of the following:
65,462 users
Featured Themes See all »
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LEGO
776 users -
Pont Suspendu
329 users -
What Rocks My Dreams
194 users -
Game of spheres and stars
114 users -
flyingcolor
885 users -
Blooming Blues by MaDonna
212 users -
yellow le
319 users -
Passing Time is Golden
1,487 users -
Window Spring Flowers
491 users -
Butterfly light 01-15
755 users -
Orchids on the Rocks by MaDonna
463 users -
Background-47
431 users -
Rainbow Peony by MaDonna
748 users -
Snake skin 01
1,997 users -
whiteandblueflower
789 users -
Yummy Berry
614 users -
blue diagonal weave
928 users -
Blue Feathering by MaDonna
844 users
Featured Collections See all »
To create your own collections, you must have a Mozilla Add-ons account.
