Somewhere between Thunderbird 1.5 and Thunderbird 2 the message search bar disappeared. This extension restores the search bar. Thunderbird 2 and newer only.
OBM Lightning Calendar and addressbooks connector
Permits to use several LDAP directories simultaneously for address autocompletion.
Abilita la gestione alternativa degli allegati P7M
GPO support For Firefox and Thunderbird دون إعادة تشغيل
Firefox and Thunderbird extension to manage user preferences and user profile CA certificates using GPOs
Adds the ability to easily insert emojis into your composed messages in Thunderbird.
ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) e delle comunicazioni PCT e FatturaPA in Thunderbird.
Supports to hide Menu Bar automatically, you can press the ALT key to show it temporarily.
Report spam is a Thunderbird plugging to report antispam errors. A new button is added to header tool bar in order to signal a message as a false positive (a ham that is tagged as spam) or a false negative (a spam not tagged as spam).
This extension will display the current status of your IMAP quota in thunderbird's statusbar and will warn you when you reach a configurable limit...
Enables the archiving of emails into SugarCRM/SuiteCRM from Thunderbird 3 and above.
Auto Zip Attachments allows you to easily compress (zip) attachments.
Extension to manage acls/permissions for shared mailboxes/folders on imap servers.
Add CalDAV search & subscribe feature to Lightning
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
Converts telephone numbers into clickable links for use with CTI applications, SIP clients, Skype, Netmeeting, snom phones, the AGFEO TK-Suite Client and SerVonic IXI-PCS.
LookOut is a plugin which allows to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
This version is a fix for Seamonkey 2.*.
Publish free/busy calendar file (*.ifb) via ftp or to a file. View other people's free/busy info in meeting organizer window. Integrate Thunderbird and Outlook calendars without Exchange server.
This is an easy to use extention, select any number on a web page, right click to open the context menu which you can use to call this number.
Want it in your language, help us : https://translations.launchpad.net/click2dial-firefox-extension