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Link Status

Shows an icon on the status bar when the mouse cursor is over a link to a page you bookmarked or visited before. In Firefox 3.5 and later, the extension also offers an option to disable the visited link styling to reduce the risk to privacy.

Rated 4 out of 5 stars (35)
179 users

BeeFree

Removes tracking links from several web search engines.

Rated 4 out of 5 stars (11)
178 users

MR Tech About:About

Adds the following "about:" options to the Help menu

Rated 3 out of 5 stars (7)
173 users

Extension Test

A simple add-on for extension testers, especially AMO editors and developers who plan to submit their add-ons to AMO.

Rated 5 out of 5 stars (6)
167 users

xSidebar Featured

Firefox style sidebars for SeaMonkey...

Rated 4 out of 5 stars (11)
165 users

Foxfiltre

Adds a many graphic filters to the main context menu.

Not yet rated
162 users

Dictionnaire des synonymes FR

Adds to browser French(FR) synonyms dictionary from package LibreOffice.

Not yet rated
158 users

DHS Facebook Unblock

Plugin to get around the Washtenaw County Facebook block.

Rated 3 out of 5 stars (1)
158 users

Dybutar No Restart

Dynamic creation of bookmark-style toolbar buttons which you can customize.

Rated 5 out of 5 stars (5)
156 users

EDS Calendar Integration

Integrates calendars events with Gnome clock applet

IMPORTANT:
Plugin may hang on Fedora.
As a workaround uninstall evolution-ews.

Rated 4 out of 5 stars (3)
155 users

GDirections

Finds directions on Google and Yahoo Maps based on your selected text and one of various home addresses that you can store.

Rated 4 out of 5 stars (41)
153 users

Random Theme Switcher

This extension switches your themes at random.

Rated 4 out of 5 stars (6)
151 users

MR Tech Link Wrapper

Wraps long links and lines to spare you from having to scroll left and right...

Rated 4 out of 5 stars (9)
151 users

Preferential (New GUID)

Advanced preferences manager for Mozilla-based...

Rated 3 out of 5 stars (5)
139 users

Synonym-Wörterbuch DE

Adds to browser German(DE) synonyms dictionary from package LibreOffice.

Not yet rated
136 users

Zing! Locale Switcher No Restart

Want to change from one language to another? Zing! and the locale is switched.

Rated 5 out of 5 stars (1)
135 users

Flashblock Ultimate Alt Zero

This extention allow to remove focus from embedded flash object by pressing Ctrl+Esc or Ctrl+F12 (see mozilla superbug: 78414) and move focus back by Alt+Esc or Alt+F12
USE THIS INSTEAD: https://addons.mozilla.org/en-US/firefox/addon/focus-regainer/

Rated 4 out of 5 stars (2)
135 users

Focus Regainer Lite

Return focus from embedded object back to browser on browser hotkeys double pressed.

Rated 5 out of 5 stars (7)
132 users

IE Tab V2

Ported version of IE Tab V2 (Enhanced IE Tab) that is compatible with SeaMonkey 2. Based on IETab.net work.

Rated 5 out of 5 stars (2)
131 users

Słownik synonimów PL

Adds to browser Polish synonyms dictionary from package LibreOffice.

Rated 5 out of 5 stars (1)
128 users