Interface Customizations

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FireTray

A system tray extension for linux, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Rated 4 out of 5 stars (184)
18,873 users
Added April 25, 2007

Compact Menu 2

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

Rated 4 out of 5 stars (316)
12,372 users
Added February 20, 2007

HashColouredTabs+

Improves tab identification by providing a small colored icon for any site which doesn't have its own 'site icon'.
★ 'favicon' now also shown in history and bookmarks ★

Rated 4 out of 5 stars (37)
3,034 users
Added January 11, 2007

MonkeyMenu

MonkeyMenu brings some of the features of the MenuX Firefox extension to the Seamonkey browser. You can add about 29 buttons to the Seamonkey user interface, collapse any toolbar, add/remove search engines, have your font zoom size reloaded, and...

Rated 4 out of 5 stars (12)
6 users
Added November 4, 2006

ImageTweak: zoom/rotate images and videos!

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 (88)
11,223 users
Added October 29, 2006

xSidebar Featured

Firefox style sidebars for SeaMonkey...

Rated 4 out of 5 stars (11)
249 users
Added August 31, 2006

QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (101)
24,456 users
Added August 27, 2006

Custom Buttons

Gives a possibility to create custom toolbarbuttons...

Rated 4 out of 5 stars (70)
91,237 users
Added June 11, 2006

ThreadKey

Strike the 'T' key to sort messages by thread, strike the 'U' key to sort them unthreaded again, just like the 'G' key switches to Grouped By Sort view

Rated 4 out of 5 stars (21)
1,666 users
Added March 28, 2006

Remember Mismatched Domains

The Remember Mismatched Domains extension for Firefox and Thunderbird adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows. When selected the domain...

Rated 5 out of 5 stars (66)
4,753 users
Added February 26, 2006

Stylish

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

Rated 4 out of 5 stars (597)
710,538 users
Added February 20, 2006

Re-Pagination No Restart

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

Rated 5 out of 5 stars (32)
4,423 users
Added February 18, 2006

FolderFlags

Allows users to edit the flags Thunderbird sets on folders.

Rated 5 out of 5 stars (7)
4,141 users
Added January 20, 2006

CuteMenus - Crystal SVG

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 (102)
12,215 users
Added October 7, 2005

Tabs Menu

Adds a Tabs menu to the main menu that lets you easily change between tabs.

Rated 4 out of 5 stars (27)
3,463 users
Added September 17, 2005

Display Mail User Agent

Displays icon for user agent of received mails.

Rated 4 out of 5 stars (98)
40,106 users
Added April 20, 2005

Forecastfox Weather

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

Rated 4 out of 5 stars (737)
449,568 users
Added December 3, 2004

Tab Clicking Options

Select actions for various clicking events on a tab or the tab...

Rated 4 out of 5 stars (71)
914 users
Added September 23, 2004

Linkification

Converts text links into genuine, clickable links...

Rated 4 out of 5 stars (272)
39,819 users
Added July 25, 2004

InspectorWidget

Adds toolbar button and context menus for invoking the DOM Inspector (DOMi) for either chrome or content elements.

Rated 5 out of 5 stars (3)
1,603 users
Added June 14, 2004