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Copy As Plain Text Requires Restart

Removes formatting from copied text.

Rated 4 out of 5 stars (60)
36 users

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Ethical signature Requires Restart

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

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0 users

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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)
22 users

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Greek - English (US) Spelling dictionary

Combined Greek - English (US) spell checking dictionary for Firefox - Thunderbird - Seamonkey

Rated 5 out of 5 stars (11)
621 users

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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)
4 users

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Zindus Requires Restart

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

Rated 4 out of 5 stars (199)
18 users

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Address Move Button Requires Restart

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

Rated 5 out of 5 stars (3)
184 users

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DOM Inspector Plus! [dm] Requires Restart

Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.

Rated 4 out of 5 stars (6)
30 users

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AutoUp Requires Restart

Transform the first letter of a sentence in uppercase

Rated 3 out of 5 stars (10)
25 users

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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)
119 users

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PitchDark for TB Requires Restart

Dark-colored minimalistic theme with emphasis on visibility, usability and maximum screen real estate.

Rated 4 out of 5 stars (52)
0 users

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Český slovník kontroly pravopisu (bez diakritiky)

Slovník pro kontrolu pravopisu u textů bez diakritiky pro aplikace Mozilla

Rated 4 out of 5 stars (8)
2,396 users

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Thunderbird Taiga Integration Requires Restart

Convert mails to user stories, tasks and tickets for the Taiga project management system. See https://pehei.de/post/thunderbird-taiga-integration for instructions.

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0 users

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URLFilter

Block advertisement and access to adult sites

Rated 4 out of 5 stars (23)
15 users

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SMTP Switch Reborn Requires Restart

SMTP Chooser.

Rated 4 out of 5 stars (7)
21 users

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Hide Menubar Requires Restart

Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.

Rated 4 out of 5 stars (330)
3 users

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Any Confirmation Message before Send Requires Restart

You can set Any Confirmation Message before Send.

Rated 5 out of 5 stars (4)
11 users

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Forward Requires Restart

Add Inline / As Attachment option to Forward button and Message context menu.

Rated 4 out of 5 stars (25)
104 users

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Great DANE Requires Restart

Retrieve DANE S/MIME Certificates for Encryption/Signing.

This extension enables users to automatically retrieve S/MIME certificates using the Great DANE Engine (https://github.com/grierforensics/Great-DANE-Engine).

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0 users

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Chat Notifier (for Thunderbird) Requires Restart

Permet d'etre notifié des nouveaux messages du chat.

Rated 4 out of 5 stars (16)
1 user

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