Appearance and Customization

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Show All Body Parts No Restart

Enable the View | Message Body As | All Body Parts message display mode.

Rated 5 out of 5 stars (17)
52 weekly downloads

Windows Taskbar Unread Badge No Restart

Put an unread mail count badge on the Thunderbird icon in the Windows taskbar.

Rated 3 out of 5 stars (13)
49 weekly downloads

Perfect View No Restart

Image viewer with smooth dynamic zoom, pan and rotate. View slide shows of images or files and capture page elements and tab content. Apply image filters. Save images in various formats.

Rated 5 out of 5 stars (6)
47 weekly downloads

Zoom Button for Thunderbird

Zoom in, zoom out, and reset zoom with one toolbar button. Works in the Compose window too.

Rated 4 out of 5 stars (11)
47 weekly downloads

Mark All Read Button

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

Rated 4 out of 5 stars (30)
47 weekly downloads

Squared Australis Tabs (Tb) No Restart

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

Rated 5 out of 5 stars (1)
46 weekly downloads

Window Master No Restart

Functionality for multiple screens and windows. Easily open links in other windows or on other screens, move or merge tabs, and move or merge entire windows. With graphical controls for grid positioning.

Rated 4 out of 5 stars (8)
45 weekly downloads

Personas Shuffler No Restart

Change your Personas theme on each browser load.

Rated 5 out of 5 stars (14)
45 weekly downloads

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
37 weekly downloads

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)
37 weekly downloads

Pic Zoom

Zoom in and out of any image on a page

Not yet rated
28 weekly downloads

Safe for Amoled No Restart

Darkens the background of the page

Rated 4 out of 5 stars (18)
28 weekly downloads

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)
28 weekly downloads

Colorific No Restart

Colorize entire web pages. Configure themes using sliders and drag-and-drop. Set domain preferences for automatic coloration.

Rated 4 out of 5 stars (7)
27 weekly downloads

Version Number in Add-ons Manager No Restart

Easily viewable version info in the Add-ons Manager on Firefox/Thunderbird 24.0 and later.
Also restores the add-on version number on Firefox/Thunderbird 40.0 and later.

Rated 5 out of 5 stars (2)
26 weekly downloads

Toggle Folderpane View

This addon provides a toolbar button for toggling between the "All" and "Favorite" views in the folderpane.

Rated 5 out of 5 stars (1)
25 weekly downloads

Column Reader No Restart

Web reader for wide screens and long documents. Read with pleasure in attractive layouts.

Rated 5 out of 5 stars (11)
25 weekly downloads

Old-style smilies

Reverts the smilies in Thunderbird to those of version 2.

Rated 4 out of 5 stars (1)
22 weekly downloads

Disable about:config

Disable about:config feature of Firefox and Thunderbird.

Rated 1 out of 5 stars (1)
19 weekly downloads

SanRockstar

Music

Rated 5 out of 5 stars (3)
19 weekly downloads