Recently Updated Extensions

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Awesome ldapInfoShow

Show contact photo and other info from Local Dir, Addressbook, LDAP, Facebook, LinkedIn, Flickr, Gravatar etc

Rated 4 out of 5 stars (11)
1,676 users
Updated Nov. 6, 2018

Smiley Fixer Requires Restart

Fixes Wingding Smileys in Outlook-generated emails

Rated 4 out of 5 stars (24)
3,409 users
Updated Oct. 22, 2018

Menu Wizard Requires Restart

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (247)
4,756 users
Updated Oct. 11, 2018

Tiny JavaScript Debugger

TinyJSD is a JavaScript debugger for privileged code running Mozilla products like Firefox, Thunderbird, SeaMonkey. It serves to debug the application as well as extensions written in JavaScript.

Rated 5 out of 5 stars (8)
429 users
Updated Oct. 5, 2018

Awesome Auto Archive

Automatically do Archive/Copy/Delete/Move actions based on user defined rules

Rated 4 out of 5 stars (36)
7,055 users
Updated Sept. 24, 2018

Nostalgy Requires Restart

Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.

Rated 5 out of 5 stars (161)
6,363 users
Updated Sept. 23, 2018

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)
301 users
Updated Sept. 23, 2018

QuoteCollapse Requires Restart

Collapse and expand quotes. Please see the extension homepage for further information.
Note that MozDev has shut down long ago (mailing list etc). Add-On homepage, source code and issue tracker are on GitHub, as linked on this page.

Rated 4 out of 5 stars (27)
3,829 users
Updated Sept. 23, 2018

Identity Chooser Requires Restart

Identity Chooser helps you to always use the correct identity when composing a new email.

Rated 5 out of 5 stars (98)
6,964 users
Updated Aug. 31, 2018

AVIM Requires Restart

Vietnamese-language input method editor (IME). Type diacritics directly into any Web page, Web app, or dialog box. Convenient, comprehensive, secure.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, hộp thoại.

Rated 5 out of 5 stars (41)
44 users
Updated Aug. 31, 2018

Hyperactive

Scans hyperlinks in composed messages and alerts if one of the hyperlinks is broken.

Rated 4 out of 5 stars (1)
39 users
Updated Aug. 22, 2018

Flexible Identity Requires Restart

Selects an identity based on the recipients list when sending an email

Rated 4 out of 5 stars (33)
1,042 users
Updated Aug. 16, 2018

Classic Toolbar Buttons [Tb24-58] (discontinued)

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7 small view, Fx4-12 large view & Tb5-14) for current Firefox, Thunderbird and Seamonkey versions.

Rated 5 out of 5 stars (145)
2,450 users
Updated July 6, 2018

No Message Pane Sort by Mouse Requires Restart

No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers.

It is still possible to sort messages by ctrl-clicking the header.

Rated 5 out of 5 stars (31)
2,011 users
Updated June 23, 2018

PlayFlash 64bit Requires Restart

Flash player plugin - unofficial xpi repack for 64bit browsers. Use when official plugin installer is not suitable. All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (32)
58 users
Updated June 13, 2018

PlayFlash 32bit Requires Restart

Flash player plugin - unofficial xpi repack for 32bit browsers.
Use when official plugin installer is not suitable.
All binary files are copyrighted by their authors and distributed for free.

Rated 5 out of 5 stars (23)
250 users
Updated June 13, 2018

CardDAV Browser Requires Restart

A utility to browse vCards stored on a CardDAV server.

Rated 3 out of 5 stars (7)
59 users
Updated June 5, 2018

Cookies Exterminator

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

Rated 5 out of 5 stars (17)
213 users
Updated May 30, 2018

Webmaster SAPE Requires Restart

Toolbar contains a set of functions, which expands the abilities of webmasters and optimizers, when working in the interface of SAPE exchange.

Rated 5 out of 5 stars (166)
11 users
Updated May 24, 2018

Private Tab

Adds private tabs.

Rated 5 out of 5 stars (313)
234 users
Updated May 16, 2018