Appearance and Customization

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Add-ons Manager - Version Number No Restart

Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (17)
1,516 users
Updated June 17, 2016

NoiaButtons No Restart

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 (14)
16,532 users
Updated June 17, 2016

Website to PDF

Convert the current webpage into a PDF file!

Just for now - get also a PRO version for FREE!

Rated 1 out of 5 stars (2)
780 users
Updated June 16, 2016

Forecastfox (fix version)

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

Now Available for: Firefox, Thunderbird and SeaMonkey!

Rated 5 out of 5 stars (205)
67,421 users
Updated June 15, 2016

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 (932)
326,683 users
Updated June 9, 2016

ColumnsWizard

Adds some magic to the mesasges list columns!
With this addon you can:
* Add a custom column
* Set the default columns for any new folder.
* Show hidden columns in the Conversation Tab.
* Edit a mail header value for a single message.

Rated 5 out of 5 stars (3)
1,149 users
Updated June 8, 2016

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (7)
21,425 users
Updated June 8, 2016

CuteButtons - Crystal SVG

Adds colourful icons to buttons and menus

Rated 4 out of 5 stars (103)
8,377 users
Updated May 26, 2016

Tategaki

Tategaki allows vertical writing-mode on mail compose window.

Not yet rated
14 users
Updated May 26, 2016

Highlight Unread Folders

This add-on enables highlighting the account names which contain unread messages.

Not yet rated
77 users
Updated May 16, 2016

Menu On Top (SuperMenu Avatar) No Restart

Move the Thunderbird menu bar to the top. Choose from a selection of visual styles + colors. Add frequently used bookmarks and an avatar icon without wasting precious screen space. Bookmark your favorite sites, emails, folders or configuration pages.

Rated 5 out of 5 stars (3)
1,315 users
Updated May 11, 2016

Tab Wheel Scroll No Restart

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

Rated 4 out of 5 stars (112)
11,705 users
Updated May 11, 2016

Color Transform No Restart

Transform the colors of entire web pages or selected elements. Combine predefined themes with basic transforms. Save transforms for specific web domains.

Rated 4 out of 5 stars (14)
3,024 users
Updated May 10, 2016

GNotifier No Restart

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 (10)
12,258 users
Updated May 9, 2016

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 (168)
50,992 users
Updated May 6, 2016

Show Calendar Week

Shows the calendar week Thunderbird/Lightning calendar's moth and multi-week view.

Rated 5 out of 5 stars (5)
3,148 users
Updated May 4, 2016

Sender Frequency

Adds a custom column for Sender Frequency to the thread pane

Rated 5 out of 5 stars (2)
67 users
Updated May 2, 2016

Send Later Button

A simple button to invoke the (already existing) send later functions.

Not yet rated
961 users
Updated April 29, 2016

Menu Filter No Restart

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

Rated 4 out of 5 stars (44)
4,216 users
Updated April 29, 2016

ansitel Click-to-Dial Thunderbird

Click-to-Dial Plugin für ansitel VoIP-Telefonanlagen zum Markieren und Wählen von Rufnummern in Mozilla Thunderbird.

Not yet rated
14 users
Updated April 28, 2016