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CuteButtons

Adds icons to buttons and/or menus.

Rated 4 out of 5 stars (95)
65 users

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Compact Menu 2 Requires Restart

Add a compact menu button to the navigation toolbar, and hide the menu bar.

Rated 4 out of 5 stars (326)
19 users

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No need flash plugin on embeded youtube movies

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (25)
52 users

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System Monitor Requires Restart

Provides CPU usage and memory usage graphs on the toolbar.

Rated 4 out of 5 stars (13)
0 users

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Browser Backgrounds Requires Restart

Browser Backgrounds is the new Firefox extension that lets you install backgrounds directly on your browser.

Rated 5 out of 5 stars (51)
1 user

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Markdown Viewer Requires Restart

Markdown document viewer.
Allows to visualize formatted markdown documents in browser.

Rated 4 out of 5 stars (52)
3 users

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ViewAbout Requires Restart

Enables access to various about: dialogs from the View menu.

Rated 4 out of 5 stars (18)
39 users

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FLST (Firefox 4+) Requires Restart

Provides Focus Last Selected Tab and Tab flipping functionality (based on the FLST extensions by Gorgias and Gozer, but ported to Firefox 4/.../56 and repaired Tab flipping functionality). Enjoy!

Rated 4 out of 5 stars (34)
4 users

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HTitle (discontinued) Requires Restart

Hide title bar if window is maximized.

This add-on has been discontinued!

Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.

Rated 5 out of 5 stars (131)
0 users

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Menu Editor II Requires Restart

Hides or moves menus and menu items. (Deprecated version, see below.)

Rated 3 out of 5 stars (62)
0 users

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URLFilter

Block advertisement and access to adult sites

Rated 4 out of 5 stars (23)
22 users

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bosskey Requires Restart

Add Boss Key, Minimize/Close to tray and memory auto cleaning to Firefox.

Rated 4 out of 5 stars (142)
0 users

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Hide Menubar Requires Restart

Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.

Rated 4 out of 5 stars (330)
2 users

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Noia Fox options Requires Restart

Options manager and fixes for Noia Fox theme 3.x.x

Rated 4 out of 5 stars (17)
30 users

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Colorific

Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.

Rated 4 out of 5 stars (14)
8 users

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xultray for gecko 1.9.1 Requires Restart

Show xul application (gecko 1.9.1 based) in system tray. supports Firefox 3.5, Thunderbird 3.0.

Rated 5 out of 5 stars (3)
0 users

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xultray for gecko 1.9.2 Requires Restart

Show xul application (gecko 1.9.2 based) in system tray. supports Firefox 3.6 / 3.7 , Thunderbird 3.1

Rated 5 out of 5 stars (8)
0 users

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KeePass Helper Requires Restart

Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.

Rated 4 out of 5 stars (40)
10 users

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Stylish Tools Requires Restart

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (3)
3 users

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Column Reader

Web reader for wide screens and long documents. Read with pleasure in attractive layouts.

Rated 5 out of 5 stars (14)
4 users

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