Appearance and Customization

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Full Address Column

Adds a full sender and recipient e-mail column to message list panel.

Rated 5 out of 5 stars (69)
1,591 users

Hide Option Pane Requires Restart

Provides ability to hide option panes.

Not yet rated
1 user

Highlight Unread Folders Requires Restart

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

Rated 5 out of 5 stars (1)
6 users

Safe for Amoled

Darkens the background of the page

Rated 3 out of 5 stars (19)
1 user

Disable About Something Requires Restart

Provides ability to disable "about:*" pages by the configuration.

Rated 5 out of 5 stars (2)
0 users

Dropbox Paper

How Does It Work?
Once you install the add-on, a new icon will appear in the Thunderbird toolbar. Simply click on the icon, and it will open the Dropbox Paper tab.

Will the Dropbox Paper Add-on Collect My Data?
Never.

Not yet rated
43 users

HTitle (discontinued) Requires Restart

Hide title bar if window is maximized.

This add-on has been discontinued!

Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.

Rated 5 out of 5 stars (131)
0 users

TabControl

Automatically close old tabs when opening new mails.

Rated 5 out of 5 stars (3)
237 users

Tela Icons

Tela Icons for Thunderbird.

Mostly monochrome, with a few color touches.
Icons for Chat not provided
A few icons have been adapted.

Code from Phoenity theme is Mozilla Public Licence.
Images from Tela theme are GPLv3
xcf files included

Rated 5 out of 5 stars (2)
22 users

Delete Trash Button Requires Restart

Adds an Empty Deleted button to the Toolbar

Rated 4 out of 5 stars (10)
118 users

Addon-Info/Sync/Compatibility

* List addons: max version on ATN, version installed, compatibility with TB 91, description
* Show addon compatibility on addon button
* Print, copy to clipboard or email
* Indicate missing addons upon receiving the email from another TB ('sync')

Not yet rated
128 users

Mark All Read Button Requires Restart

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

Rated 4 out of 5 stars (52)
623 users

Toggle Inline

Adds a Toggle Inline button

Rated 5 out of 5 stars (1)
100 users

Enhanced Date Formatter Requires Restart

Configure the 'Date' and 'Received' columns and displayed date in the message pane using custom formats. You can even use different date formats for emails with today's date, yesterday's date, dates in the last week, or dates older than a week.

Rated 4 out of 5 stars (12)
17 users

ScrollAnywhere

Scroll without touching the scroll-bar!
Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar.

Features also:
- "grab and drag" scrolling
- customizable scrollbars!
- the Momentum auto-scroll

Rated 5 out of 5 stars (1)
357 users

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
1 user

SanRockstar Requires Restart

Music

Rated 5 out of 5 stars (3)
0 users

Version Number in Add-ons Manager

[Restartless] [e10s Compatible]
Easily viewable version info in the Add-ons Manager on Firefox/Thunderbird 41.0 - 56.*
Also restores the add-on version number on Firefox/Thunderbird 41.0 - 56.*.

Rated 4 out of 5 stars (4)
12 users

New Bing Anywhere

New Bing isn't just for Edge anymore. Anywhere you want

Rated 2 out of 5 stars (2)
29 users

Enhanced Priority Display

Enhanced thread pane display of message priorities.

Rated 5 out of 5 stars (13)
134 users