Appearance and Customization

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Stylish-Custom Requires Restart

custom additions to Stylish extension

Rated 5 out of 5 stars (6)
715 users
Updated July 16, 2017

Message Title Header

Show a title header above messages.

Not yet rated
4 users
Updated July 14, 2017

CuteButtons

Adds icons to buttons and/or menus.

Rated 4 out of 5 stars (92)
5,381 users
Updated June 29, 2017

AdvancedTasks Requires Restart

Thunderbirds Lightning Extension: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.

Not yet rated
72 users
Updated June 23, 2017

TipsTrade Ticket Buttons Requires Restart

This extension parses emails for TipsTrade Tickets and VRMs and creates a menu that links directly to the vehicle in the Broking Applications. Add the "Ticket" button to the email preview toolbar. Click on the button to generate tipstrade:// links

Not yet rated
4 users
Updated June 22, 2017

Lightning Calendar Tabs Requires Restart

Displays tabs which allows quick navigation between time periods in Lightning calendar. All views of calendar are supported. Color of tab texts can be adjusted.

Rated 4 out of 5 stars (9)
25,901 users
Updated June 17, 2017

YouTube 2 Player

Send YouTube video links to an external player, downloader, etc,

Rated 5 out of 5 stars (10)
915 users
Updated June 14, 2017

Simple Locale Switcher Requires Restart

An easier management of the user interface language

Rated 5 out of 5 stars (11)
28,193 users
Updated June 8, 2017

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 (36)
10,828 users
Updated June 8, 2017

QuickMultiselect Requires Restart

Adds a column with checkboxes so that you can select multiple messages with only a mouse click.

Not yet rated
176 users
Updated May 26, 2017

lightningWeather Requires Restart

LightningWeather shows the weather forecast in the background of the calendar so you can easily coordinate your activities with the weather.

Rated 4 out of 5 stars (4)
618 users
Updated May 18, 2017

Personas Plus

Personas (now known as lightweight themes) are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite themes.

Rated 3 out of 5 stars (853)
180,499 users
Updated May 18, 2017

Squared Australis Tabs (Tb)

A small and simple extension, which replaces the curved tabs of the Australis design with squared ones, similar to Thunderbird v14 and prior.

Rated 4 out of 5 stars (7)
469 users
Updated May 14, 2017

NoiaButtons

The 'NoiaButtons' add-on offers cartoonish toolbar button icons (known from Noia themes) for default theme and lightweight themes. Further more lite silver and dark versions of Noia themes are included.

Rated 5 out of 5 stars (18)
14,510 users
Updated May 10, 2017

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)
1,674 users
Updated May 10, 2017

Maximize Message Pane Requires Restart

Maximize message pane by collapsing the thread pane. You can read a message in larger area without opening a new message window...

Rated 4 out of 5 stars (27)
2,330 users
Updated April 29, 2017

Tag Toolbar Requires Restart

Add toolbar for toggling tags.

Rated 4 out of 5 stars (54)
14,668 users
Updated April 29, 2017

Set Default Columns Requires Restart

Provides ability to set default visibility of columns in the thread pane.

Rated 3 out of 5 stars (3)
68 users
Updated April 25, 2017

AddressBook in Tab Requires Restart

Adds a button that can be put in toolbars which opens the addressbook in a new tab like pastismans AddressBookTab

Rated 4 out of 5 stars (2)
1,532 users
Updated April 19, 2017

New Tab Button Requires Restart

It provide you the following functionalities:
* Open a selected message in a tab by a toolbar button
* Open a message in a tab by double-clicking its header view (disabled by default)
* Hide Lightning's Today Pane on opening a tab

Rated 5 out of 5 stars (7)
1,317 users
Updated April 18, 2017