Interface Customizations

Subscribe

GNotifier

Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.

Rated 5 out of 5 stars (20)
14,635 users

Lightweight Themes Manager

Manage your installed personas (lightweight themes).

Rated 5 out of 5 stars (12)
13,170 users

YouTube Video Player Pop Out

YouTube Video Player Pop Out lets you pop out YouTube videos so that you can watch YouTube videos while you surf.

Rated 5 out of 5 stars (4)
12,885 users

Open With Google Chrome

Open With Google Chrome sends pages from Mozilla Firefox to Google Chrome.

Rated 5 out of 5 stars (5)
11,968 users

Tab Wheel Scroll

Switch tabs by scrolling with the mouse wheel in the tab bar.

Rated 4 out of 5 stars (124)
11,566 users

JSONovich

Pretty-prints JSON content in the browser for easy, unobtrusive viewing.

Rated 4 out of 5 stars (38)
9,599 users

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 (131)
8,653 users

CuteButton (and Menu) Icons

Adds icons to buttons and/or menus.

Rated 4 out of 5 stars (105)
7,871 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 (96)
7,768 users

Re-Pagination

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

Rated 4 out of 5 stars (54)
7,449 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 (43)
7,175 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)
7,142 users

Speed Start

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

Rated 5 out of 5 stars (49)
7,068 users

Stylish Sync

Sync engine for Stylish with backup / restore facility.

Rated 5 out of 5 stars (26)
6,188 users

Open With Internet Explorer

Open With Internet Explorer sends pages from Mozilla Firefox to Internet Explorer.

Not yet rated
5,203 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 (35)
5,129 users

FolderFlags Requires Restart

Allows users to edit the flags Thunderbird sets on folders.

Rated 5 out of 5 stars (8)
4,852 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 (100)
4,664 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)
4,655 users

URLFilter

Block advertisement and access to adult sites

Rated 4 out of 5 stars (17)
3,974 users