Add-ons
Newest Extensions
Sort by:
TB Custom Toolbar
Requires Restart
Adds a button to make new toolbars in Thunderbird
XUL/Migemo
Requires Restart
This provides dictionary-assisted search (Migemo search) and regular expression powered search for "find in this page" and other features.
Send Format LDAP
Requires Restart
Gets supported email formats (text/HTML) by the recipients from LDAP directories.
Card Viewer Extended
Requires Restart
Adds a button in address book cards to fetch and display the certificate of a contact.
Simple HT Jumper
Requires Restart
A temporal simple jumper of HTML and Plan TEXT view mode on showing messages and replying messages for Thunderbird without changing the default setting.
Custom Buttons²
Requires Restart
The Custom Buttons² Firefox extension provides the code base support necessary to create, maintain, import, and export custom toolbar buttons. The buttons can perform just about any task, with a large number of buttons already available on the exte...
IranZilla
Requires Restart
IranZilla provides the following services in Thunderbird:
* Adds a column in the mail view for displaying Iranian dates for each email.
* Supports both English and Persian Iranian month names.
* Adds a context menu item for copying the Iranian dates...
SmtpSwitch
Requires Restart
SmtpSwitch allows to choose the smtp server when clicking on the 'Send' button.
MarkSubfolders
Requires Restart
This Add-on provide ability to mark as read subfolders.
Tag Toolbar / Tag Popup
Book Text Mark
Requires Restart
Use context menu or Bookmarks menu to set mark lines within long pages. Navigate to marked pages and to the marked lines.
Highlight interesting sections of text, navigate between highlighted sections.
FolderCheck
Requires Restart
Allows you to easily tell Thunderbird to check multiple folders for messages
NotTo
Requires Restart
Are you using mailing lists in Thunderbird ?
Do you forward a lot of mail ?
If so, this extension may be useful for you.
BorderColors
Requires Restart
Color-codes compose windows depending the active e-mail identity, to avoid sending messages from the wrong account.
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 ...
Restart Thunderbird
about:kittens
Requires Restart
Baby cats and kittens in the about box...
ManualJunkAction
Requires Restart
Introduces an option to specifically set which folder manually marked junk will go to per account.
Spamness
Requires Restart
Visual representation of how spam-like messages are.
To create your own collections, you must have a Mozilla Add-ons account.
