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Attachment Sizes Requires Restart

Ability to see attachment sizes ...

Rated 4 out of 5 stars (57)
1 user

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One Click Search Requires Restart

One-click search similar to The Bat! program.

Rated 4 out of 5 stars (18)
0 users

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DOM Inspector Requires Restart

Inspect the DOM of HTML, XUL, and XML pages, including the mail...

Rated 3 out of 5 stars (6)
0 users

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Buttons! Requires Restart

Adds buttons to the Thunderbird toolbars such as Next! and Previous! buttons for navigating through all messages instead of just unread ones. See homepage for more...

Rated 4 out of 5 stars (61)
2 users

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TheRealURL Requires Restart

Get URL information: expand short URLs, get title and content type information without visiting the site.

UPDATE, AUG 2013: THIS EXTENSION IS NO LONGER SUPPORTED. The source is open - if you wish to take on the development, you're welcome.

Rated 3 out of 5 stars (7)
1 user

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CallingID Link Advisor Requires Restart

CallingID Link Advisor verifies the links you see in Firefox and Thunderbird are safe before you follow them. When the mouse is placed over any link a risk assessment and the full details of the site owner are displayed, helping you evaluate the...

Rated 2 out of 5 stars (10)
0 users

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Text size toolbar Requires Restart

Adds text size buttons to the toolbar. This has now been superseded by the Zoom toolbar https://addons.mozilla.org/en-US/firefox/addon/6118

Rated 4 out of 5 stars (21)
0 users

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Tag the Bird Requires Restart

Tag the Bird gives the power of tagging to Thunderbird.

Rated 3 out of 5 stars (14)
0 users

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Alphanumerator Requires Restart

Convert alphanumeric phone numbers to just numbers. Simply highlight the text, right-click it, and click "Alphanumerate". For example, 1-800-PICK-UPS would be converted to...

Rated 5 out of 5 stars (2)
0 users

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Zhong Wen Requires Restart

Mouse over a Chinese character to find out it's meaning. A popup will appear showing the 'Pinyin' pronunciation, the simplified character form, and the English translation. You can customize what parts to show on the preferences window.

Rated 4 out of 5 stars (24)
1 user

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Signature Fixer Requires Restart

Fixes the Signature Stacking bug for Forwards/Replies.

Rated 2 out of 5 stars (4)
0 users

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External Email Alert Requires Restart

Alerts user to confirm that it is ok to send an external email.

Rated 3 out of 5 stars (6)
0 users

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BccBlocker Requires Restart

A ThunderBird extension to prevent the use of the Bcc field.

Bcc is the worst thing ever.
It kills transparency inside an organization.
If you use the Bcc feature, you should ask yourself why..

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0 users

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Kyrgyz Key Requires Restart

Allows to type Kyrgyz alphabets like Ө,Ң and Ү in any text fields of Firefox Browser, Web Pages and Thunderbird. Converts Latin words into Cyrillic words instantly. Makes EnglishRussian translations.

Rated 5 out of 5 stars (1)
0 users

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View Headers Toggle Button Requires Restart

This extension adds a toolbar button that allows the easy toggling of viewing all message headers.

Rated 3 out of 5 stars (29)
0 users

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SmtpSwitch Requires Restart

SmtpSwitch allows to choose the smtp server when clicking on the 'Send' button.

Rated 4 out of 5 stars (21)
8 users

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random(signature) Requires Restart

Updates a given signature file in regular intervals.

Rated 4 out of 5 stars (50)
2 users

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BorderColors Requires Restart

Color-codes compose windows depending the active e-mail identity, to avoid sending messages from the wrong account.

Rated 4 out of 5 stars (33)
1 user

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XPCOMViewer Requires Restart

XPCOMViewer is tiny tool for exploring XPCOM components.

Rated 4 out of 5 stars (6)
0 users

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File Bug Report Requires Restart

For testers and developers who submit bug reports: Adds "File Bug Report" command to Tools menu. Opens browser at the Bugzilla enter-bug page in guided format with product and build identifier.

Rated 5 out of 5 stars (1)
0 users

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