Interface Customizations

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ACColorPicker

A full featured color selector tool, to work with colors, and easily find the colors you want.
很方便色取色器,可以页面上直接取色,然后再对颜色进行进一步的调整

Not yet rated
255 users

Active Stop Button Requires Restart

Stop gif animation with button, context menu or Esc key

Rated 4 out of 5 stars (40)
3,593 users

Add Search Engines for SeaMonkey Requires Restart

Add missing search-engine detection to SeaMonkey

Rated 4 out of 5 stars (2)
2 users

Add-ons Manager - Version Number

Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (21)
1,690 users

All Menus Button

Show all the menus in a single menu button that can be placed anywhere. Also contains replacement buttons for the default menus.

Rated 4 out of 5 stars (10)
1,345 users

AMO Browsing for SeaMonkey

This extension makes browsing for extensions easier at addons.mozilla.org. It fixes incorrect information about some extensions being not available for SeaMonkey and adds links to the Add-on Converter where needed.

Rated 5 out of 5 stars (3)
116 users

Big Navigation

enlarging the navigation links on the pages

Rated 5 out of 5 stars (8)
409 users

Blue Essence Seamonkey Theme Requires Restart

Dark navigator theme based on a default Classical theme and now works on Linux :)

Rated 4 out of 5 stars (5)
0 users

CheckBoxMate Lefedor Edition Requires Restart

Check multiple checkboxes by drawing a rectangle around them. FF6 version.
I've made this version since i did need it for use with RTM,

Rated 4 out of 5 stars (14)
893 users

Classic Toolbar Buttons

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions.

Beta builds on versions page!

Rated 5 out of 5 stars (132)
30,596 users

CloseTab Requires Restart

Lightweight add-on which adds to right-click menu 3 items allowing to close current tab, open a new one and reopen closed one. Right-click anywhere on site instead of using keyboard or finding buttons.

Rated 4 out of 5 stars (3)
242 users

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 (353)
4,483 users

Custom Buttons Requires Restart

Gives a possibility to create custom toolbarbuttons...

Rated 4 out of 5 stars (118)
6,770 users

Customizations for Adblock Plus

This extension provides various customization options for the Adblock Plus user interface.

Rated 5 out of 5 stars (13)
9,051 users

CuteButtons

Adds icons to buttons and/or menus.

Rated 4 out of 5 stars (92)
5,465 users

CuteMenus - Crystal SVG Requires Restart

Note from Mozilla: This add-on has been discontinued. Try Menu Icons Plus instead.

Adds icons to all menus along with some other features...

Rated 4 out of 5 stars (103)
126 users

Display Mail User Agent Requires Restart

Displays icon for user agent of received mails.

Rated 4 out of 5 stars (104)
29,891 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 (27)
8,234 users

Duplicate Tab Requires Restart

Duplicate Tab allows you to clone a tab along with its...

Rated 5 out of 5 stars (181)
40 users

Duplicate Tab Blocker

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 (11)
465 users