Toggle Word Wrap Requires Restart
Toggle word wrapping and <PRE> element wrapping in the message composition and HTML display windows, respectively. Based on original version by Kaspar Brand.
Toggle wrapping of long lines in the message composition window when writing plaintext messages. Wrapping can be controlled via a toolbar button and a keyboard shortcut.
Addons to edit EML files and save your emails as EML file with their attachements.
Available on Github with MIT Licence :
Custom Sender Address and Reply Requires Restart
Select sender mail address based on the recipient and reply with the same address
Adds a Address Box button, toggles the Address Box in the Composer window
Quickly choose one of the previously selected colors for a message text
TarotSignature Requires Restart
This version provides a custom button for the message composer.
You need to customize your toolbar of the message composer.
The signature is hard-coded into the source code.
The signature is NOT being inserted automatically on window-open.
A revival of the popular Markdown-Here addon for Thunderbird 78 and beyond.
Markdown Here Revival is a Thunderbird extension that lets you write emails in Markdown and render them as HTML before sending.
Adds an 'expand lists' button to the compose window. It replaces all mailing lists with their contacts.
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
Use @ to mention somebody on an email to link and add to the CC.
Check that number of non-BCC recipients does not exceed a parameter.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
Allows you to resend (also known as redirect) email messages.
Uses 'cardbook' if installed
Bases on the add-on 'Mail Redirect' by Onno Ekker and Pawel Krzesniak
Please see the help page on how to use and why it sometimes does not work!
Mail Merge with Preview, an enhanced version of Mail Merge by Alexander Bergmann. MailMergeP Allows you to send bulk messages based on a spreadsheet of data.
Uploads your large attachments to your Box instead of sending them by email.
This add-on changes all but the first "to" to "cc" if there are multiple "to" when replying to an email.
Do you often send emails to the same list of people? Do you press reply and then clear off subject/email body?
No longer. Open a new compose window with all recipients/cc/bcc in a clean state. You can start with a new subject line and email body.
Traffic light protocol extension for Thunderbird, messages are customizable in the option page.
Transfer Immunity is a fast and secure add-on and SaaS service for sharing and transferring files. This high-fidelity, SaaS-based platform allows users to send large files to different destinations as attachments with emails.