Most Popular Extensions
rmIncomingDups Requires Restart
rmIncomingDups is a Thunderbird extension that checks if there are duplicate messages across accounts.
When a new mail arrives rmIncomingDups checks according to the rules configured if it finds some duplicates and removes them.
Status-Bar Custom Buttons Requires Restart
Create your own status-bar buttons.
TB Menubar Unread Notifier Requires Restart
Output the number of unread messages in all inboxes into the temporal file /tmp/testUnread. As a result, this output file can serve as an input for other applications to read and show notification either on a dock bar or on the menubar.
Mail Size Report Requires Restart
Report current size of mail with attachment files in status bar
Options Toolbar Button Requires Restart
Identity Reminder Requires Restart
How many times have you sent out an email and forgotten to set the appropriate email identity? Over and over I send out an email from the wrong address and promise myself I'll never forget again and from now on, I will make sure to set the...
This extension is the most advanced tool to reach Clickbank Store with ease get your to favorite products.If you right-click on some selected text, then it will give an option to search the selected text.
SS Ancestry Quick Button Requires Restart
A quick button link to the website, ssancestry.comyr.com/.
Follow Broken Lotus Notes Links Requires Restart
Fixes the HREF on MASFLOW links in emails from Lotus Notes.
If you dont know what that is you do not need this.
SendToSecondEmail Requires Restart
This Extension lets you send Mails to both, first and second email address...
Send to xNode Requires Restart
Sends content to xNode for analysis. Provides information on domain names, IP addresses, eMail addresses, certificates and much more.
A button to call up the Sunbird Calendar from Firefox and Thunderbird toolbars . 64 BIT operating system version!
Don't Forget CC Requires Restart
Path Explorer Requires Restart
Adds "Open with Explorer" to the message pane's right-click menu.
Ethical signature Requires Restart
Add a button to the email composition toolbar, which lets you insert an ethical signature.
Reject Button 1.0 Requires Restart
Annoyed by receiving mails with missing or wrong subjects or meaningless message bodies? Simply reject them with the Reject Button Add-On and enforce proper e-mail etiquette at the cost of just a few friendships.
Ubuntu Unity unread count and quicklist Requires Restart
Notify Unity of new mails in Thunderbird. Also, right click Thunderbird icon and get new quicklist items: Compose new mail and Contacts.
Based in awn-notif by Thesa aka Florian Birée
S/MIME Security for Multiple Identities Requires Restart
Adds S/MIME Security configuration to the multiple identities dialog.
Meanwhile this feater has been integrated into Thunderbird 3
NewsWorthy for Thunderbird 1.5 Requires Restart
Making Thunderbird newsworthy (Usenet client support)...