Appearance and Customization

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userChromeJS

Load the contents of chrome/userChrome.js from the user's profile directory every time a window is opened.
This is an attempt to re-implement the old userChromeJS extension to make it compatible with Thunderbird 60+.

Not yet rated
0 users
Added April 1, 2019

Colored Folders Requires Restart

Add colors to your folders in Thunderbird!
Must-have for better organisation + intuitive and speedy workfow...

This is project "Color Folders" (originally by Fisheater), corrected, resurrected, restaurated, extended and republished

Rated 5 out of 5 stars (23)
2,548 users
Added Jan. 8, 2019

BorderColors D Requires Restart

Shows a colorful border around the "New Message" window, so you can tell different identities apart.

Builds on the original BorderColors and the "GT" version, adding different border styles.

Rated 4 out of 5 stars (5)
1,077 users
Added Nov. 17, 2018

Hide Caption Titlebar Plus ⁴

⦁ NEW! Floating Toolbars & Menus with autohide!
⦁ "Maximize your screen content space by adjusting window TitleBar, Tabs, Toolbars, etc!".
⦁ Multiple Configurable Actions for both screen-corner buttons: Application/'Home' & Close buttons!

Not yet rated
134 users
Added Sept. 29, 2018

Seturgent Requires Restart

Sets the urgent flag (X11) of the Thunderbird window under Linux in case of new messages. Does ignore special folders like Drafts, Junk and such.

Rated 5 out of 5 stars (2)
41 users
Added Aug. 21, 2018

YNote Requires Restart

Make some text notable on the each folder in folder's property dialog box.

Rated 5 out of 5 stars (1)
6 users
Added July 31, 2018

Theme Font & Size Changer (fixed)

Fixed version (no 90 day timer till silent failure) of the popular "Theme Font & Size Changer for Thunderbird" addon

Rated 4 out of 5 stars (33)
17,997 users
Added April 9, 2018

Send to Internals Requires Restart

Provides a special button to send mail to internals. "Internals" may be company, organization, or user group and so on.

Not yet rated
5 users
Added March 5, 2018

Force Hide Message Pane Requires Restart

Force hide message pane at startup.

Not yet rated
5 users
Added Jan. 18, 2018

Switch Link External Handler Requires Restart

Provides abilities to switch external handlers to open links.

Not yet rated
2 users
Added Jan. 18, 2018

No Delete Requires Restart

Prevents to delete messages from your disk. Note that it's OK to move mail into trash folder itself.

Rated 1 out of 5 stars (1)
5 users
Added Jan. 18, 2018

Theme Font & Size Changer for ThunderBird

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 3 out of 5 stars (82)
13,743 users
Added Nov. 14, 2017

ansitel Click-to-Dial MT Requires Restart

Dieses Plugin ermöglicht das Wählen von markierten Rufnummern im Mozilla Thunderbird mit ansitel VoIP-Telefonanlagen. Einfach Rufnummer markieren und per Rechtsklick mit der Maus loswählen.

Not yet rated
13 users
Added Sept. 8, 2017

Message Title Header

Show a title header above messages.

Rated 1 out of 5 stars (1)
10 users
Added June 10, 2017

QuickMultiselect Requires Restart

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

Rated 5 out of 5 stars (2)
25 users
Added May 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 (12)
10,267 users
Added March 28, 2017

AdvancedTasks Requires Restart

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

Rated 5 out of 5 stars (3)
1,326 users
Added March 28, 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
0 users
Added Feb. 20, 2017

Keep in Taskbar Requires Restart

A simple plugin that makes the Close button behave exactly like the Minimize one.

Rated 5 out of 5 stars (17)
4,505 users
Added Feb. 7, 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 3 out of 5 stars (11)
1,875 users
Added Jan. 15, 2017