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Random Theme Switcher Requires Restart

This extension switches your themes at random.

Rated 4 out of 5 stars (7)
57 users

Copy Link Name for Thunderbird Requires Restart

It's like Copy Link Name for Firefox but for Thunderbird!

Rated 4 out of 5 stars (3)
57 users

FlatStyle for Thunderbird Requires Restart

This gives you a style similar to MS Office XP in your Thunderbird menus and toolbars, and Calendar as well if you have that installed. It also changes the category-selector in the options window to use your system colors, instead of always being...

Rated 2 out of 5 stars (1)
57 users

PONG! Multiplayer Requires Restart

Play a game of PONG! while you are waiting.

Rated 5 out of 5 stars (7)
57 users

Check Attachment before Send Requires Restart

Confirms to send a mail with any attachment.

Not yet rated
56 users

Dictionary for recipient

Sets the spell check dictionary based on the first recipient

Not yet rated
56 users

pass-manager Requires Restart

Replace integrated password managers storage with zx2c4's pass (www.passwordstore.org)

Rated 3 out of 5 stars (1)
56 users

Mutt Keys Requires Restart

Creates Mutt like key bindings for Thunderbird. Inspired by the mouseless extension.

Rated 4 out of 5 stars (1)
55 users

privateID Requires Restart

This extension displays a warning if you send a message from your private emailID to an address/ mailing list which is not found in your Personal Address Book...

Rated 3 out of 5 stars (6)
55 users

EuropeanMX Spam Reporter Requires Restart

Train your EuropeanMX filter by reporting unrecognized spam or false-positives back to us.

Not yet rated
54 users

Soapy Requires Restart

Bypasses DNS-based censorship

NOTE: This was created as a SOPA protest in 2012. This does not work anymore for most sites. Use Tor instead.

Not yet rated
54 users

Mail Sent Notifier Requires Restart

Allows to notify a HTTP-GET based webservice after successfully sent an email, e.g. for time registration systems.

Not yet rated
54 users

Limit_Offline_Message_Size Button Requires Restart

Limit the size of a message to download with a single click of the button for slow (and/or expensive) network connection.
Quick access to Tools->Account Settings->Disc Space->"To save disk space, do not download: Messages larger than XXkB"

Rated 5 out of 5 stars (1)
54 users

Edit HTML Source Requires Restart

You can now edit the HTML source in the Compose...

Rated 3 out of 5 stars (15)
54 users

Resubmit Requires Restart

(Re)submit multiple messages to a predefined recipient(s)

Not yet rated
53 users

ePhotoUploader Requires Restart

ePhoto Uploader is a Mozilla/Firefox addon to allow you to upload any image on websites you're browsing to your ePhotoBay account by just one click. For the addon to work a free ePhotoBay account is required.

Rated 1 out of 5 stars (2)
53 users

Run Filters on Folder button Requires Restart

A 'Run Filters on Folder' toolbar button. Based on http://developer.mozilla.org/en/docs/Custom_Toolbar_But...

Rated 4 out of 5 stars (4)
53 users

Kmaleon Extension Requires Restart

Con esta extensión podrás hacer una copia de tus emails en el programa kmaleon.

Not yet rated
52 users

gTimer Requires Restart

gTimer предназначен для подсчёта времени, проводимого за работой в Firefox.

Rated 4 out of 5 stars (4)
52 users

Bugzilla Helper Requires Restart

Quickly reply to your bugmail on bugzilla.mozilla.org without leaving Thunderbird.

Rated 4 out of 5 stars (4)
52 users