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Auto Compress File Requires Restart

Compressor for attachment files. All platforms are supported (Windows, Linux and Macintosh).

Rated 5 out of 5 stars (18)
635 users

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Metal Lion Silver Sea Monkey Requires Restart

Metal Lion meets SeaMonkey and makes it shine....

Rated 5 out of 5 stars (2)
34 users

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Brazilian Portuguese Dictionary (Former Spelling)

The same spellchecker shipped with the Brazilian version of Firefox, just using the former spelling (which is valid until January 1st 2016).

Rated 4 out of 5 stars (6)
688 users

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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 (20)
121 users

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Romanian spellchecking dictionary

Romanian spellchecking dictionary for Firefox.

Rated 4 out of 5 stars (40)
4,163 users

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Nuvola TB Requires Restart

Theme based on the Nuvola icon set by David Vignoni (http://icon-king.com/?p=15).

You can find developer versions under http://mozilla.paenglab.ch/

Rated 5 out of 5 stars (69)
130 users

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Stylish-Custom Requires Restart

custom additions to Stylish extension

Rated 4 out of 5 stars (10)
6 users

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Markdown Here Requires Restart

Write your email in Markdown, then make it pretty.

Rated 4 out of 5 stars (46)
34 users

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Türkçe Yazım Denetimi

Türkçe Yazım Denetimi
Turkish Spellchecker

Rated 5 out of 5 stars (39)
1,958 users

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Emoji Menu Requires Restart

Adds the ability to easily insert emojis into your composed messages in Thunderbird.

Rated 4 out of 5 stars (16)
1,096 users

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German dictionary (de_AT)

German dictionary igerman98 (de_AT, Austria), for Firefox, Thunderbird und Seamonkey.

Rated 5 out of 5 stars (5)
3,249 users

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Walnut for Thunderbird Requires Restart

Walnut for Thunderbird, based on icons from art.gnome.org, and sporting a wooden look.
Supports Thunderbird versions 53.0 to 60.0. From version 61.0, Thunderbird will drop support for full custom themes.

Rated 5 out of 5 stars (41)
32 users

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Contact Photos Requires Restart

Displays contact photos in the message header.

Rated 4 out of 5 stars (31)
85 users

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tb_email_grabber Requires Restart

Very basic extension that exports all sender of mails in one folder into a CSV, which includes their fullname and email. The extension adds an option to the folder view context menu. Please select the folder to export before starting the export.

Rated 3 out of 5 stars (5)
6 users

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Croatian Dictionary (Hrvatski Rječnik)

Croatian Dictionary (Hrvatski Rječnik) for Mozilla Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (9)
4,346 users

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Lithuanian spelling check dictionary

Lithuanian spellchecking dictionary for Mozilla applications. Included by default in Lithuanian localized versions of Mozilla software.

Rated 5 out of 5 stars (5)
3,005 users

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Black Oyster Requires Restart

A clean theme for Thunderbird with dark icons on a light background.

Rated 5 out of 5 stars (10)
1 user

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Lightbird Requires Restart

Standalone calendar UI for Lightning

Rated 4 out of 5 stars (21)
121 users

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Close Proxy Authentication Requires Restart

Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.

Rated 5 out of 5 stars (5)
1 user

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Nautipolis for Thunderbird Requires Restart

Nautipolis for Thunderbird: High-quality, solid theme based on icons from art.gnome.org.
Supports Thunderbird versions 53.0 to 60.0. From version 61.0, Thunderbird will drop support for full custom themes.

Rated 5 out of 5 stars (26)
28 users

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