Appearance and Customization

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Show Calendar Week

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

Not yet rated
10 users
Updated July 3, 2015

Search as list

Search results appear as list (as per the "Open email as list" button).
- return to facet view with shift+close [x]
- auto open list view when few results found
- column config./sort/toggle [IMG3&4]
- apply columns to search as list menu [IMG5]

Rated 5 out of 5 stars (18)
829 users
Updated July 3, 2015

about:config Button No Restart

Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.

Not yet rated
26 users
Updated July 2, 2015

Add-ons Manager - Version Number No Restart

Restores add-on version number inside Add-on Manager for latest builds of Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (3)
54 users
Updated June 28, 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 (4)
2,350 users
Updated June 28, 2015

Noia Fox options

Options manager and fixes for Noia Fox theme 3.x.x

Rated 5 out of 5 stars (9)
47,297 users
Updated June 21, 2015

Lightning Calendar Tabs

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 (7)
25,241 users
Updated June 18, 2015

Page Colors & Fonts Buttons No Restart

Adds buttons to toggle the using the default page colors and fonts, and the page defined colors and fonts.

Rated 5 out of 5 stars (1)
208 users
Updated June 11, 2015

All Menus Button No Restart

Show all the menus in a single menu button that can be placed anywhere. Also contains replacement buttons for the default menus.

Rated 5 out of 5 stars (3)
546 users
Updated June 11, 2015

Disable Addons

Disable Addons.

Rated 2 out of 5 stars (1)
5 users
Updated June 10, 2015

globalChrome.css

Provides global user stylesheet.

Not yet rated
61 users
Updated June 10, 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)
477 users
Updated June 6, 2015

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (6)
9,961 users
Updated June 1, 2015

TotalQuickFilter

Reboot the QuickFilter bar.

Rated 3 out of 5 stars (5)
297 users
Updated May 18, 2015

Menu Filter No Restart

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

Rated 4 out of 5 stars (31)
2,621 users
Updated April 30, 2015

Gravatars

Show a column with the Gravatar-picture and sender-name in email folders.

Not yet rated
27 users
Updated April 27, 2015

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 3 out of 5 stars (9)
2,417 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 (101)
16,001 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 (89)
6,714 users
Updated April 18, 2015

Customizable LDAP AddressBook Auto Complete

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

Not yet rated
22 users
Updated April 14, 2015