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FireTray Requires Restart

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Rated 4 out of 5 stars (291)
1,089 users

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MinimizeToTray revived Requires Restart

Minimizes windows into the system tray.

Rated 4 out of 5 stars (395)
1,216 users

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ImportExportTools Requires Restart

Adds some tools to import and export folders and messages

Rated 4 out of 5 stars (250)
8,511 users

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Mail Redirect Requires Restart

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (144)
2,934 users

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Mnenhy Requires Restart

The primary goal of the Mnenhy project is to make some enhancements to SeaMonkey MailNews/Thunderbird, since there're still plenty of comfort functions missing if compared to Netscape 4.x and other mail and news clients.

Rated 4 out of 5 stars (39)
28 users

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Oak Vocabulary Requires Restart

Oak Vocabulary Extension...

Rated 4 out of 5 stars (9)
2 users

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Tab Counter

A simple extension that counts the number of open tabs per window and displays the count in the toolbar...

Rated 4 out of 5 stars (115)
4 users

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ThunderBirthDay Requires Restart

Display birthdays from the Thunderbird addressbooks as events in Lightning.

Rated 4 out of 5 stars (97)
223 users

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URL Flipper Requires Restart

Quickly and easily increment and decrement numbers and strings in URLs for navigating through URL sequences.

Rated 4 out of 5 stars (38)
6 users

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Russian hot keys bugfix Requires Restart

Makes hot keys work with Russian, Ukrainian and Hebrew keyboard layout in Linux and *BSD (needed only for GTK2 builds).

Rated 5 out of 5 stars (7)
0 users

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SourceEditor Requires Restart

View and Edit source of HTML element...

Rated 4 out of 5 stars (20)
1 user

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Sun Cult Requires Restart

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

Rated 5 out of 5 stars (109)
15 users

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Perspectives Requires Restart

Connect securely to https websites by checking certificates with network notaries. See http://www.perspectives-project.org

Rated 4 out of 5 stars (47)
0 users

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signTextJS

window.crypto.signText replacement

Not yet rated
2 users

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Tab Clicking Options Requires Restart

Select actions for various clicking events on a tab or the tab...

Rated 4 out of 5 stars (70)
7 users

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Dict

Looks up the definition of words on a Web page.

Rated 5 out of 5 stars (15)
3 users

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PasswordMaker Requires Restart

One Password To Rule Them All!

Rated 4 out of 5 stars (56)
0 users

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BBCodeXtra Requires Restart

(Sorry, no plans to port this add-on to Webextensions)
BBCodeXtra is an extension, compatible with Mozilla FireFox (up to 57) and Seamonkey, which adds to the context menu new commands to insert BBCode/Html/XHtml codes in an easy and fast way...

Rated 5 out of 5 stars (71)
4 users

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Moji Requires Restart

An integrated sidebar-dictionary for Japanese and Chinese including kanji dictionary.

Rated 4 out of 5 stars (9)
2 users

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Cookies Exterminator

Auto delete cookies, localStorage and IndexedDB objects as soon as they become unused

Rated 5 out of 5 stars (17)
128 users

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