Featured Extensions

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User Agent Switcher Featured

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Rated 4 out of 5 stars (262)
337,477 users

Screengrab (fix version) Featured

Screengrab! saves webpages as images.
0.99 released!
New features: upload to internet

Rated 5 out of 5 stars (286)
137,539 users

Easy Copy Featured

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.

Rated 5 out of 5 stars (33)
15,497 users

Keyword Search No Restart Featured

Search in the address bar without changing your search engine.

Rated 5 out of 5 stars (85)
9,874 users

HTTPS Everywhere Featured

Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.

Rated 4 out of 5 stars (78)
184,964 users

Tab Scope Featured

Preview and navigate tab contents through popup.

Rated 4 out of 5 stars (467)
134,708 users

QuickMark No Restart Featured

A quick and minimalistic way to create bookmarks.

Rated 5 out of 5 stars (44)
11,083 users

Public Fox Featured

Block downloads, lock down bookmarks/addons/downloads with a password.

Rated 4 out of 5 stars (179)
198,031 users

Tab Memory Usage No Restart Featured

Tab Memory Usage displays the amount of memory is used by each tab

Rated 4 out of 5 stars (28)
48,020 users

Ghostery No Restart Featured

Enjoy a faster, safer and cleaner browsing experience.

Rated 5 out of 5 stars (1,271)
1,438,107 users

Weather Forecast Plus No Restart Featured

Weather Forecast Plus is the easiest way to check the weather while you browse internet

Rated 4 out of 5 stars (48)
32,308 users

Tab Groups No Restart Featured

Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.

Rated 5 out of 5 stars (190)
93,187 users

ChatZilla Featured

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Rated 4 out of 5 stars (126)
131,596 users

Adblock Plus Pop-up Addon Featured

Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

Rated 5 out of 5 stars (194)
1,106,728 users

SmoothWheel Featured

Scrolls the page smoothly when scrolling the mouse wheel (or keyboard arrows if enabled).

Rated 5 out of 5 stars (257)
37,894 users

Fox Web Security Featured

Protection from adult content (parental control) and from dangerous sites.
Entrust protection for yourself and your children to professionals!

Rated 5 out of 5 stars (15)
28,837 users

Video Downloader Prime No Restart Featured

Easily download most popular video formats.

Rated 4 out of 5 stars (26)
49,044 users

QrCodeR No Restart Featured

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

Rated 5 out of 5 stars (67)
7,918 users

uBlock Origin No Restart Featured

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

Rated 5 out of 5 stars (523)
1,155,843 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 (282)
38,683 users