Top-Rated Extensions

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Facebook Toolbar Button No Restart

Facebook Toolbar Button lets you visit your Favorite Facebook quickly and easily by adding a special Facebook Button to your Toolbar.

Rated 5 out of 5 stars (16)
27,193 users

Drag-Select Link Text No Restart

Select link text with easy drag gestures.

Rated 5 out of 5 stars (20)
727 users

SeaTab-X-2

Adds Firefox-style tab closers into SeaMonkey.

Rated 5 out of 5 stars (15)
1,713 users

FlashGot Mass Downloader Featured

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.

Rated 5 out of 5 stars (491)
918,879 users

Menu Wizard

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (105)
17,087 users

uBlock Origin No Restart

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

Rated 5 out of 5 stars (140)
153,964 users

Adblock Plus No Restart Featured

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,913)
19,625,070 users

Facebook Share Button No Restart

Facebook Share Button lets you share any web page on your Facebook Timeline by a quick Facebook button.

Rated 5 out of 5 stars (22)
12,089 users

WorldIP - Geo Add-on with Security Features

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

Rated 5 out of 5 stars (115)
40,551 users

GNotifier No Restart

Add-on for Firefox and Thunderbird. Integrates Firefox's notifications with the OS's native notification system. It supports most Linux desktops and Windows 8.

Rated 5 out of 5 stars (40)
9,875 users

HTitle

Hide title bar if window is maximized.

This extension created only for GNOME 3. It can create problems with another DE (KDE, XFCE, etc). However, you can use HTitle at your own risk (need enable "legacy" mode on settings page).

Rated 5 out of 5 stars (88)
6,649 users

F.B. Purity - Cleans Up Facebook No Restart

F.B. Purity hides the ads, app spam and other annoying clutter from your facebook news feed, lets you increase the font size, change colours plus many more features and generally makes Facebook a lot less annoying to use.

Rated 5 out of 5 stars (75)
63,522 users

Ziftr Alerts (formerly FreePriceAlerts) No Restart

You do the shopping. We'll do the searching. It's that simple.

Rated 5 out of 5 stars (22)
8,664 users

Right Links

This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.

Rated 5 out of 5 stars (110)
8,236 users

Addons Manager Hilite No Restart

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Rated 5 out of 5 stars (18)
851 users

Saved Password Editor

Adds the ability to create and edit entries in the password manager.

Rated 5 out of 5 stars (204)
88,078 users

Extension Auto-Installer No Restart

Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.

Rated 5 out of 5 stars (13)
3,640 users

Slim Add-ons Manager No Restart

The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.

Rated 5 out of 5 stars (44)
11,130 users

ConQuery

Context searching for everyone and URL manipulation tool for advanced users...

Rated 5 out of 5 stars (38)
443 users

Identity Chooser

Identity Chooser helps you to always use the correct identity when composing a new email.

Rated 5 out of 5 stars (91)
8,291 users