Interface Customizations

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Big Navigation No Restart

Increases the navigation links on the pages

Rated 5 out of 5 stars (4)
882 users
Updated March 7, 2014

Search Engine Quick Switcher No Restart

Switch the current search engine on the fly! Press Control + Shift + Down Arrow to switch to the next search engine or Control + Shift + Up Arrow to select the previous one.

Rated 3 out of 5 stars (2)
14 users
Updated February 2, 2014

Lightweight Themes Manager No Restart

Manage your installed personas (lightweight themes).

Rated 5 out of 5 stars (6)
13,826 users
Updated January 20, 2014

Old Addon Manager

Brings back Firefox 3.x Addon Manager

Rated 5 out of 5 stars (1)
65 users
Updated January 12, 2014

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)
64,003 users
Updated December 24, 2013

Lightweight Themes Preview for SeaMonkey No Restart

Preview lightweight theme when hover on menuitems in Apply Theme menu.

Rated 1 out of 5 stars (1)
3 users
Updated December 4, 2013

Duplicate Tab Blocker No Restart

Prevent duplicate tabs. Allow only one tab for a url. If you click a link that is already opened in a tab, then existing tab would be focused instead of opening a new tab. This works even across firefox windows.

Rated 3 out of 5 stars (10)
937 users
Updated December 1, 2013

Nightly Tester Tools

Useful tools for the nightly tester.

Rated 4 out of 5 stars (189)
37,840 users
Updated October 30, 2013

Dybutar No Restart

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

Rated 5 out of 5 stars (6)
157 users
Updated October 19, 2013

TaQuilla

Automatic tagging using Bayesian statistics

Rated 4 out of 5 stars (8)
311 users
Updated October 14, 2013

ThreadKey

Strike the 'T' key to sort messages by thread, strike the 'U' key to sort them unthreaded again, just like the 'G' key switches to Grouped By Sort view

Rated 4 out of 5 stars (23)
1,589 users
Updated September 20, 2013

jQuery

jQuery and jQuery UI embedded in browser

Rated 4 out of 5 stars (7)
2,784 users
Updated August 31, 2013

Zorcher

Selecting a small text on the page do not need to copy it into the search bar of your browser or search engine. Just press the right mouse button and select the search service from the available list.

Rated 5 out of 5 stars (10)
279 users
Updated August 25, 2013

RC Print

Adds a "Print" option to the Right-Click context menu.

Rated 5 out of 5 stars (2)
848 users
Updated August 9, 2013

Google Redesigned 2

Ported version from Firefox to be compatible with Seamonkey 2.

A complete redesign of popular Google services, Google Redesigned changes the appearance of popular Google services.

Not yet rated
20 users
Updated July 24, 2013

Safe for Amoled No Restart

Darkens the background of the page

Rated 4 out of 5 stars (18)
2,360 users
Updated July 11, 2013

Scriptish

The greatest user script engine on the Internet (a fork of Greasemonkey).

Rated 4 out of 5 stars (111)
69,636 users
Updated June 15, 2013

Show History Popup No Restart

When you press the middle mouse button or scroll wheel mouse show popup window the history in the url bar and search bar.

Rated 4 out of 5 stars (2)
104 users
Updated May 14, 2013

Togglify Add-on Toggler No Restart

Adds toolbar buttons for each restartless add-on (including user scripts and plugins) to toggle its enabled state.

Rated 3 out of 5 stars (7)
27 users
Updated April 30, 2013

Restartless Restart No Restart

This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.

Rated 5 out of 5 stars (180)
43,142 users
Updated January 28, 2013