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Sun Cult Requires Restart

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

Rated 5 out of 5 stars (107)
115 users

Copy Plain Text 2 Requires Restart

Copies text without formatting

Rated 5 out of 5 stars (96)
343 users

MinimizeToTray For FF 3.5 Requires Restart

MinimizeToTray For firefox 3.Minimizes Mozilla windows into the system tray.Note:I am going to remove this extension if the original creator make a FF 3 version!

Rated 5 out of 5 stars (122)
1 user

Addons Manager Hilite

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Version 3.0 also includes sorting buttons. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Rated 5 out of 5 stars (19)
22 users

QuickNote Requires Restart

A simple note-taking extension.

Rated 5 out of 5 stars (203)
504 users

bioFOX Requires Restart

Bioinformatics tools on Mozilla based browsers

Rated 5 out of 5 stars (20)
0 users

PlayFlash 64bit Requires Restart

Flash player plugin - unofficial xpi repack for 64bit browsers. Use when official plugin installer is not suitable. All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (32)
58 users

PlayFlash 32bit Requires Restart

Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (23)
257 users

Add-ons Manager Context Menu Requires Restart

Add more items to Add-ons Manager context menu.

Rated 5 out of 5 stars (49)
208 users

AutoCopy 2 Requires Restart

Copies selected text to the clipboard automatically.

Rated 5 out of 5 stars (75)
138 users

Extension Auto-Installer

Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.

Rated 5 out of 5 stars (48)
30 users

Version in Add-on bar Requires Restart

Show the Firefox/Thunderbird version number in the addon bar (formerly called status bar).

Rated 5 out of 5 stars (10)
32 users

Dorando keyconfig Requires Restart

A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) work again!

Rated 5 out of 5 stars (50)
5,898 users

Addons Quick Search Requires Restart

Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.

Rated 5 out of 5 stars (12)
48 users

Session Manager

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Rated 5 out of 5 stars (847)
495 users

Restart

"Restart" menu and button, with configurable shortcut key.

Rated 5 out of 5 stars (107)
347 users

No Tooltip Timeout Requires Restart

"title" tooltips won't disappear anymore

Rated 5 out of 5 stars (33)
1 user

BBCodeXtra Requires Restart

(Sorry, no plans to port this add-on to Webextensions)
BBCodeXtra is an extension, compatible with Mozilla FireFox (up to 57) and Seamonkey, which adds to the context menu new commands to insert BBCode/Html/XHtml codes in an easy and fast way...

Rated 5 out of 5 stars (71)
22 users

AutoProxy-ng Requires Restart

This is a fork of AutoProxy, which can run the latest version of Firefox.

Rated 5 out of 5 stars (35)
8 users

Mouse Gestures Suite Requires Restart

Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.

Rated 5 out of 5 stars (61)
158 users