Interface Customizations

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Right Links Requires Restart

This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.

Rated 5 out of 5 stars (133)
6,835 users

Lightweight Themes Manager

Manage your installed personas (lightweight themes).

Rated 4 out of 5 stars (13)
6,438 users

Custom Buttons Requires Restart

Gives a possibility to create custom toolbarbuttons...

Rated 4 out of 5 stars (121)
6,346 users

Speed Start

Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks

Rated 5 out of 5 stars (61)
6,204 users

Slim Add-ons Manager

The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.

Rated 5 out of 5 stars (51)
5,934 users

CuteButtons

Adds icons to buttons and/or menus.

Rated 4 out of 5 stars (94)
5,219 users

Old Default Image Style

Restores the default image style used for top-level images in previous versions of Firefox.

Rated 5 out of 5 stars (91)
5,175 users

Duplicate This Tab Requires Restart

This add-on provides the much needed feature update of Tab Duplication to Mozilla Browsers. Features Supported include Duplication of Browser Tabs, Detaching Tabs and Merging All Windows.

Rated 4 out of 5 stars (38)
4,809 users

Re-Pagination

See more search results etc. on one page, concatenating several pages together...

Rated 4 out of 5 stars (50)
4,238 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 (325)
4,191 users

FolderFlags Requires Restart

Allows users to edit the flags Thunderbird sets on folders.

Rated 5 out of 5 stars (8)
3,644 users

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)
3,569 users

True Full Screen in SeaMonkey

This extension enables true full screen mode in SeaMonkey for HTML5 video players, slide-shows, etc. and also for full screen invoked manually with the F11 key.

Rated 5 out of 5 stars (17)
3,437 users

Active Stop Button Requires Restart

Stop gif animation with button, context menu or Esc key

Rated 4 out of 5 stars (40)
3,372 users

Stylish Sync

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (26)
3,167 users

Edit Bookmark Plus Requires Restart

Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.

Replacement of OpenBook addon

Rated 4 out of 5 stars (64)
2,619 users

lolifox - Fierr MOD Requires Restart

Replaces the error page with a lolifox appearance with additional features.

Rated 5 out of 5 stars (32)
2,285 users

Xclear Requires Restart

Safari-like icons in the URL, search and find fields to clear their contents.

Rated 5 out of 5 stars (41)
2,216 users

ImageTweak: zoom/rotate images and videos! Requires Restart

A no-clutter image viewer for Firefox that allows you to zoom, rotate and display images/videos against a custom background. ImageTweak is a must-have addon for any photographer or photography-loving user.

Rated 4 out of 5 stars (95)
2,160 users

Key config Requires Restart

This add-on provides configurable keyboard shortcuts for several actions and a dialog to customize them.
All shortcuts can be redefined in Tools -> Key settings

Rated 3 out of 5 stars (20)
2,146 users