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Extra Format Buttons Requires Restart

Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.

Rated 4 out of 5 stars (19)
127 users

Tag Sequence Arranger Requires Restart

Enable you to arrange the tag sequences in their listbox.

Rated 5 out of 5 stars (19)
66 users

Sun Cult Requires Restart

Worldwide Sunrise, Sunset, Twilight, Moonrise and Moonset...

Rated 5 out of 5 stars (109)
16 users

mappviewer Requires Restart

Tools for Meyersound's MAPPonline

Not yet rated
0 users

ThunderSync Requires Restart

Allows to synchronise Thunderbird's addressbook with external directories/files. Every contact is exported/compared with an external file. Right now, only vCard version 2.1 is supported as export file format.

Rated 4 out of 5 stars (18)
33 users

XL2Report Requires Restart

Report und grafische Auswertung für Messungen mit dem XL2-Audio und Akustik Analyzer von NTi Audio

Not yet rated
0 users

Export All Certificates Requires Restart

Adds an option to export all root certificates.

Rated 2 out of 5 stars (3)
2 users

OpenMixTools Requires Restart

convert session files of yamaha consoles, print channel lists and reports

Not yet rated
1 user

Rikaichan Japanese Names Dictionary File Requires Restart

A dictionary file for Rikaichan.

Rated 5 out of 5 stars (6)
5 users

dictCheck Requires Restart

dictCheck - Double click on any english word in a page to get the polish meaning. Uses fast online dictionary.
Simple and easy! Enjoy!

Rated 5 out of 5 stars (4)
0 users

Copy As Plain Text Requires Restart

Removes formatting from copied text.

Rated 4 out of 5 stars (60)
38 users

Ethical signature Requires Restart

Add a button to the email composition toolbar, which lets you insert an ethical signature.

Not yet rated
0 users

FavLoc Requires Restart

FavLoc allows you to set folders as "favorite locations" to which you can easily download. FavLoc menus will appear on the File menu (for saving pages), the context menu (for saving images and links), and on the download...

Rated 4 out of 5 stars (59)
0 users

Check Domain Requires Restart

This extension is to display the warning dialog when you send mail for multiple domains.

Rated 4 out of 5 stars (4)
25 users

Thunderbird Biff Requires Restart

This add-on provides a visual indicator of new Thunderbird mail availability in supported clients (Firefox, Sunbird) and Thunderbird itself. Note: you MUST install this add-on in BOTH Thunderbird and supported clients as there are both client AND ser...

Rated 4 out of 5 stars (37)
5 users

Zindus Requires Restart

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Rated 4 out of 5 stars (199)
20 users

Address Move Button Requires Restart

Allow you to add a Address Move Button to mail compose window.

Rated 5 out of 5 stars (3)
208 users

TryAgain Requires Restart

TryAgain keeps trying to load a webpage when the server cannot be reached.

Rated 4 out of 5 stars (68)
1 user

AutoUp Requires Restart

Transform the first letter of a sentence in uppercase

Rated 3 out of 5 stars (10)
27 users

Extra Folder Columns Requires Restart

This extension is for those TB3 users who want the multiple-columns view that TB2 allowed

IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.

Rated 4 out of 5 stars (214)
131 users