Appearance and Customization

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Color Transform No Restart

Adapt page colors to your taste or need. Save your favorite color scheme for automatic coloration. Comes with 18 predefined themes and 24 basic transforms for hue, saturation, lightness and opacity. For Firefox 24.0 and above.

Rated 4 out of 5 stars (7)
2,469 users
Updated April 20, 2015

Menu Wizard

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (83)
13,303 users
Updated April 20, 2015

HTitle

Hide title bar if window is maximized.

This extension created only for GNOME 3. It can create problems with another DE (KDE, XFCE, etc). However, you can use HTitle at your own risk (need enable "legacy" mode on settings page).

Rated 5 out of 5 stars (85)
6,939 users
Updated April 18, 2015

TotalQuickFilter

Reboot the QuickFilter bar.

Rated 4 out of 5 stars (4)
335 users
Updated April 16, 2015

Customizable LDAP AddressBook Auto Complete

Provides (restores) customizability of auto complete items for LDAP addressbook items, and more features.

Not yet rated
3 users
Updated April 14, 2015

Path Linker

メール本文中のファイルパスっぽいものをリンク化して関連付けで開けるようにします

Not yet rated
1 user
Updated April 13, 2015

GNotifier No Restart

Add-on for Firefox and Thunderbird. Integrates Firefox's notifications with the OS's native notification system. It supports most Linux desktops and Windows 8.

Rated 5 out of 5 stars (37)
11,042 users
Updated April 13, 2015

ColumnsWizard

Adds some magic to the folder list columns!
With this addon you can:
* Add a custom column
* Set the default columns settings for any new folder.
* Show hidden columns in the Conversation Tab and in the search window.

Rated 5 out of 5 stars (3)
402 users
Updated April 11, 2015

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (5)
9,793 users
Updated April 10, 2015

Redmine連携

コンテキストメニューでRedmineチケットを作成します

Not yet rated
55 users
Updated March 18, 2015

Extra Format Buttons

Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.

Rated 5 out of 5 stars (1)
524 users
Updated February 26, 2015

Lightning Reminder Left Buttons

Tired to mistakenly press that "Dismiss All" button? Move the Lightining Reminder "Snooze all for" and "Dismiss All" buttons to the LEFT!
... and from version 2.0 you can keep them on the RIGHT, but swapped!

Not yet rated
199 users
Updated February 20, 2015

Toggle Folderpane View

This addon provides a toolbar button for toggling between the "All" and "Favorite" views in the folderpane.

Not yet rated
94 users
Updated February 18, 2015

Menu Filter No Restart

Keep your menus in check by filtering out items you never use.

Rated 4 out of 5 stars (28)
2,412 users
Updated February 15, 2015

Auto Zoomer

Keep a preset zoom level across thunderbird restarts.
Usefull on High DPI screens.

Rated 5 out of 5 stars (1)
75 users
Updated February 9, 2015

Simple Week View

A simple week view for Lightning, as in the print layout.

Rated 4 out of 5 stars (2)
259 users
Updated February 9, 2015

Simple Timer

A timer/clock residing in the toolbar.

Rated 5 out of 5 stars (103)
14,477 users
Updated January 26, 2015

Sort and Search Customization Dialogs

Sort and search for buttons in (any) toolbar customization dialog

Rated 4 out of 5 stars (13)
507 users
Updated January 14, 2015

Mark All Read Button

Adds toolbar buttons to Mark All emails as Read, Mark Thread as Read, and Goto Next Unread Thread.

Rated 4 out of 5 stars (29)
4,519 users
Updated January 8, 2015

ksbtechies No Restart

Displays latest ksbtehchies News in a popup widget
Get all the Latest ksbtehchies News headline with a single click.

Opens a popup widget with the latest news headlines.

Not yet rated
2 users
Updated December 14, 2014