Add-ons
Top-Rated Extensions
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Run Filters on Folder button
Requires Restart
A 'Run Filters on Folder' toolbar button. Based on http://developer.mozilla.org/en/docs/Custom_Toolbar_But...
Bugzilla Helper
Requires Restart
Quickly reply to your bugmail on bugzilla.mozilla.org without leaving Thunderbird.
Get Selected Messages
Requires Restart
Adds the button on the toolbars "Get All New Messages", "Get Selected Messages" and "Get Starred Messages", the analog of button from File and File->Offline->Get Selected Messages, Get Starred Messages for loading selected messages by...
SmtpSwitch
Requires Restart
SmtpSwitch allows to choose the smtp server when clicking on the 'Send' button.
mozPod
Last Message
Requires Restart
Navigate the folder to the last message in the moment the folder is opened.
Sender Verification Anti-Phishing Extension
Requires Restart
Protects you from phishing attacks by verifying the From: address domain name of emails as you read them. Sender Policy Framework (SPF) and DNS-based reputation lists are used.
Thundersomething
Requires Restart
Changes the product name in various parts of Thunderbird for everlasting naming fun.
Make your Thunderbird wear a new mask every time.
Ruler Bar
Thunderled
Requires Restart
For ASUS laptop owners, each time a new email is in your inbox, the email led will switch on...
Growl/GNTP for Thunderbird
Requires Restart
Sends GNTP (Growl) notifications when new messages or feed items arrive.
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.
TitleCase For Thunderbird
Requires Restart
Transform strings into Title Case, Proper Case, Start Case, Camel Case, Upper Case, and Lower Case. Highlight your text and only changing what you highlighted.
Outlook/Teams Appointments
Get the hidden appointment from an email from outlook/teams as a .ics-file - Icon: https://fontawesome.com/
Lightning Invitation Notifier | LIN
This extension is an extension to Mozilla Lightning for Thunderbird.
It shows a toast message and opens the invitations window when an invitation arrives.
Rspamd-spamness
stripImages
Remove all images from message with one click.
Places a "strip images" button on the toolbar of the message compose window.
Clicking the button will remove all images from the message.
This helps keep mailbox disk space down.
AutoSlide
The AutoSlide addon automatically moves the splitter between the thread and the message pane in Thundbird so that the thread pane is set to a optimal height.
addressContext
Requires Restart
An extension to add addressbook-related options to the context...
Grammar, Proofreading & Spell Checker
Check the grammar and spelling directly inside Thunderbird using Wordeep technology
To create your own collections, you must have a Mozilla Add-ons account.
