Featured Extensions

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Self-Destructing Cookies No Restart Featured

Fix the web. Gets rid of a site's cookies and LocalStorage as soon as you close its tabs. Protects against trackers and zombie-cookies. Trustworthy services can be whitelisted.

Rated 4 out of 5 stars (512)
188,136 users

NoScript Security Suite Featured

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

Rated 5 out of 5 stars (1,585)
2,063,385 users

X-notifier (for Gmail,Hotmail,Yahoo,AOL ...) Featured

Notifier for gmail, yahoo, hotmail, aol and more webmails.
X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails...
Supports : gmail, yahoo, hotmail, POP3/IMAP, facebook, twitter and more

Rated 4 out of 5 stars (1,686)
93,551 users

Multifox No Restart Featured

An extension that allows Firefox to connect to websites using different user names. Simultaneously.

*** Multifox 2 users: try the "Window Mode" (Addons - Multifox - Options) ***

Rated 4 out of 5 stars (96)
71,818 users

QrCodeR No Restart Featured

Encode selection, links and images to QrCode with right-click.

Rated 5 out of 5 stars (68)
7,748 users

Password Tags Featured

Adds metadata and sortable tags to the password manager.

Rated 5 out of 5 stars (7)
2,878 users

Download YouTube Videos as MP4 No Restart Featured

An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.

Rated 4 out of 5 stars (413)
1,034,737 users

FoxyProxy Standard Featured

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.

Rated 4 out of 5 stars (358)
275,837 users

uBlock Origin No Restart Featured

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (569)
1,264,100 users

Webmail Ad Blocker No Restart Featured

Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.

Rated 4 out of 5 stars (195)
109,024 users

AdBlock for YouTube™ No Restart Featured

AdBlock for YouTube™ removes all annoying Ads from YouTube

Rated 4 out of 5 stars (31)
308,993 users

Prevent Tab Overflow No Restart Featured

Make sure your tabs stay visible all the time.

Rated 5 out of 5 stars (55)
11,282 users

Show My Password Featured

You are annoyed because your password fields are always scrambled though nobody else but you can see the screen? This most advanced unscrambling addon shows your passwords in readable letters, while being fully customizable to fit your needs.

Rated 5 out of 5 stars (79)
33,833 users

Mozilla Archive Format, with MHT and Faithful Save Featured

— Open web pages saved with Internet Explorer or other browsers (MHT)
— 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!

Rated 4 out of 5 stars (312)
159,491 users

Omnibar Featured

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.

Rated 4 out of 5 stars (473)
35,584 users

Font Finder Featured

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Rated 4 out of 5 stars (71)
35,918 users

Capture & Print No Restart Featured

This add-on lets you print a webpage's area easily.

Rated 5 out of 5 stars (51)
47,654 users

Lightbeam for Firefox No Restart Featured

Lightbeam is a Firefox add-on that enables you to see the first and third party sites you interact with on the Web. Using interactive visualizations, Lightbeam shows you the relationships between these third parties and the sites you visit.

Rated 4 out of 5 stars (419)
462,813 users

Beyond Australis No Restart Featured

Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!

Rated 5 out of 5 stars (295)
35,030 users

DuckDuckGo Plus No Restart Featured

DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension makes DuckDuckGo available in the address bar, search bar and right-click menu. Also adds a handy toolbar button with more features!

Rated 4 out of 5 stars (150)
117,326 users