Extensions by Name

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Add-on Preferences Button No Restart

Displays a menu that allows you to open the option/preference window for any add-on that has one.

Rated 5 out of 5 stars (2)
360 users

Add-on Update Checker

Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.

Rated 4 out of 5 stars (54)
12,581 users

Add-ons Button No Restart

Opens the Add-ons window to perform tasks on your installed Extensions, Themes, Plug-ins and Language packs.

Rated 5 out of 5 stars (1)
2,053 users

Add-ons Manager - Version Number No Restart

Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (18)
1,544 users

Add-ons Manager Context Menu

Add more items to Add-ons Manager context menu.

Rated 5 out of 5 stars (35)
17,806 users

Add-ons Toolbar Button

This is a small devision of my Toolbar Buttons extension. https://addons.mozilla.org/firefox/2377/ or http://codefisher.org/toolbar_button/

Rated 5 out of 5 stars (6)
16 users

Additional Chat Protocols for Thunderbird

Add support for chat protocols implemented in libpurple.

Rated 3 out of 5 stars (35)
1,960 users

Additional Folder Views

Add a new unread-favorite-recent folders treeview.

Rated 4 out of 5 stars (22)
415 users

Addons Manager Hilite No Restart

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Rated 5 out of 5 stars (18)
714 users

Addons Quick Search

Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.

Rated 5 out of 5 stars (9)
649 users

Addons Recent Updates

Show more addons recent updates

Rated 5 out of 5 stars (9)
1,866 users

Address book synchronizer between Memotoo.com and Thunderbird

Synchronize your address book between Mozilla Thunderbird and Memotoo.com !...

Not yet rated
1 user

Address bulk copy (アドレス一括コピー)

Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。
それを実現するためのアドオンです。

Rated 5 out of 5 stars (2)
1,874 users

Address Cleaner Replying

メッセージ返信時に宛先に含まれる表示名を除去します。
A display name is erased when an e-mail screen is opened.

Rated 5 out of 5 stars (2)
556 users

Address Close Button

Adds a Address Close Button to mail compose window.

Rated 5 out of 5 stars (25)
12,217 users

Address Move Button

Allow you to add a Address Move Button to mail compose window.

Not yet rated
3,485 users

AddressBook In Mode ToolBar

Add adressbook button to "mode toolbar" (requires lightning extention)

Rated 4 out of 5 stars (7)
1,276 users

Addressbooks Default Search No Restart

Provides ability to set default search query for address books.

Rated 4 out of 5 stars (2)
214 users

Addressbooks Synchronizer

Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers

Rated 4 out of 5 stars (58)
33,281 users

AddressBookTab

It adds a button that can be put in toolbars and that open the addressbook in a new tab

Rated 4 out of 5 stars (67)
13,330 users