Top-Rated Extensions
Sort by:
MailClassifier Requires Restart
The mailclassifier extension helps you to move the email in the right folder, it uses multi-level bayesian filtering...
Quick Locale Switcher Requires Restart
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
infoRSS Requires Restart
Displays RSS, Atom, Twitter, parsed HTML and NNTP feed in a scrolling area in the status bar. Compatible with podcasting RSS which can be downloaded directly. It's also a good Google email notifier.
RemindIt
Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.
Telify Requires Restart
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.
Purge! Requires Restart
Add toolbar icons to purge (compact folders) and/or delete junk messages to your toolbar and thread context...
Resubmission Folder Requires Restart
View the most important e-mails sorted after specified resubmission date and filter them. Do the same with sent e-mails to see which recipient has to be reminded to answer your e-mail.
ATTENTION:
Only tested on Windows!
Some bugs not fixed yet!
SendVia Requires Restart
Sometimes you need to select a specific SMTP server for sending the current message? Then SendVia is for you.
SendVia provides the `Send' button of message composition windows with a drop-down menu from which you can select or create the SMTP server...
Mark Read On Reply and Reply-All Requires Restart
Mark messages read after clicking Reply or Reply All
Remote Content By Folder
Decide whether to allow or block remote content in messages by comparing the names of the folders in which they are located to configured regular expressions.
Get Map for Thunderbird
The "Get Map" button from the old address book is missing in Thunderbird 102 and 115, this extension puts it back. OpenStreetMap and Google Maps are both available. OpenStreetMap is configured by default and can be changed in the Add-ons Manager.
RepSel: Reply to all selected mails
Reply to all selected messages with a single button press. E.g., compose a reply to all emails in a folder or those matching a search. Req. permissions: menues to add UI, messageRead to get sender, compose to add recipients, storage for settings.
Country Lookup Requires Restart
Looks up the origin country and city of an e-mail message, using the IP address.
KnujOn Requires Restart
Forwards all emails marked Junk (as attachments) to KnujOn.com (note: they collect email reports on the coldrain.net domain). KnujOn is an organization that works to shut down junk mailers by contacting law enforcement, web hosts, etc..
Mail and Save Tab URLs Requires Restart
If you often share web page addresses (URLs) with others or save them in text file, bookmark, or copy to clipboard for your own reference, this extension will make your life easier!
QuickFileMail Requires Restart
QuickFileMail is a Thunderbird Add-On that helps to quickly file messages in the right folder.
To create your own collections, you must have a Mozilla Add-ons account.