Top-Rated Extensions

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xThunder Requires Restart

Manage popular downloaders (Windows, Linux, Mac) and support special links of thunder,flashget,qqdl,ed2k,magnet,fs2you.

Rated 5 out of 5 stars (85)
157,462 users

Saved Password Editor Requires Restart

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

Rated 5 out of 5 stars (263)
72,059 users

Download Panel Tweaker

Some tweaks for built-in download panel

Rated 5 out of 5 stars (42)
4,005 users

Better HKGolden Requires Restart

Improve HKGolden Forum, including layout cleanup and advertisements removal

Rated 5 out of 5 stars (68)
82 users

Keyword Search Featured

Search in the address bar without changing your search engine.

Rated 5 out of 5 stars (81)
6,115 users

Pentadactyl

Firefox for Vim and Links addicts.

Rated 5 out of 5 stars (137)
327 users

Switch to Tab no more Requires Restart

Disables the Switch to Tab function.

Rated 5 out of 5 stars (45)
2,230 users

Ageless for YouTube Compatible with Firefox 57+

Watch age restricted YouTube videos without signing in.

Rated 5 out of 5 stars (59)
9,814 users

1-Click Downloader (Video or Photo) Compatible with Firefox 57+

Click to download any Youtube, Instagram, Facebook, Vid.me, Streamable, LiveLeak, Vine video or photo.

Rated 5 out of 5 stars (94)
6,636 users

A Bit Better RTM Requires Restart

Small improvements for Remember The Milk interface (original greasemonkey script "A Bit Better RTM" - http://userscripts.org/scripts/show/32518)

Rated 5 out of 5 stars (32)
271 users

BioLegend Immunology Tools Requires Restart

Welcome to BioLegend's Firefox Addon. This addon contains the latest information on Human and Mouse CD Molecules from the HLDA Workshop, Information on Cytokines and Chemokines, Pathway Posters, All the Latest News from BioLegend, and more...

Rated 5 out of 5 stars (11)
63 users

ModMovil Extension Requires Restart

Este plugin está pensado y diseñado para facilitar la navegabilidad por el foro modmovil.com; de manera tal que el foro este accesible a un simple click de distancia.

Rated 5 out of 5 stars (11)
0 users

Biobar Requires Restart

A power browsing toolbar for the Life Sciences (Biology/Bioinformatics/Medicine). Easily search and retrieve data from over 45 bioinformatics services from the comfort of the toolbar. Links to bioinformatics tools and resources.

Rated 5 out of 5 stars (11)
886 users

Sidebars List

Adds drop-down list to switch sidebars

Rated 5 out of 5 stars (13)
518 users

Mason Requires Restart

This extension can simplify the rule to just specify the URI and Content type and can enable/disable each rule separately.
What's more, it can customize the web pages by user scripts which is similar to Grease Monkey.

Rated 5 out of 5 stars (68)
2,679 users

Slim Add-ons Manager Featured

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 (51)
6,949 users

Toggle Mixed Active Content

An icon that toggles the preference of blocking mixed active content.
Preference Name: security.mixed_content.block_active_content

Rated 5 out of 5 stars (13)
3,214 users

ConQuery Requires Restart

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

Rated 5 out of 5 stars (38)
37 users

Sun Cult Requires Restart

Worldwide Sunrise, Sunset, Twilight, Moonrise and Moonset...

Rated 5 out of 5 stars (105)
2,870 users

Element Properties Requires Restart

Returns the 'Properties' menu item that was removed in Firefox 3.6 to the context menu.

Rated 5 out of 5 stars (108)
919 users