Upload large attachments to your Cloud and send the link by email
Uploads your large attachments to your Box instead of sending them by email.
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
SmartTemplate4 Requires Restart
SmartTemplate⁴ offers an easy and powerful way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every mail identity, Stationery files can now be imported and used directly.
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.
Flex Confirm Mail Requires Restart
Confirm mail address and attachments based on flexible rules.
Emoji Requires Restart
Add emojis to your e-mails.
Uploads your large attachments to your OwnCloud or NextCloud server and instead inserts a public link into your email.
Send Later Requires Restart Featured
True "Send Later" functionality to schedule the time for sending an email.
Reply to Multiple Messages Requires Restart
Add menu commands for replying to multiple messages at the same time.
changeQuote Requires Restart
It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->“Add-on Preferences -> changeQuote.
One-by-One Forward Requires Restart
Highlight multiple emails, right-click, then select "One-by-One Forward". This extension will allow you to forward the selected emails, one-by-one, to the recipients you specify using your choice of attachment handling.
CategoryManager Requires Restart
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
EnForward Requires Restart
Save your email into Evernote by forwarding it to Evernote email address.
Before you use it, you need to specify your Evernote email address (see the screenshot).
This function can be invoked by "Forward to Evernote" in the context menu.
Shrunked Image Resizer Requires Restart
Make your photos smaller, so they don't take forever to email.
ThunderHTMLedit Requires Restart Featured
Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.
Stop Ignoring Reply:To Requires Restart
Default "Reply" functionality pays attention to "Reply-To" in original email
BorderColors D Requires Restart
Shows a colorful border around the "New Message" window, so you can tell different identities apart.
Builds on the original BorderColors and the "GT" version, adding different border styles.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
Check and Send Requires Restart
Check the message contents and addresses before you send the message...