Edit Message Encoding Fallback Requires Restart
Fallback to a safe encoding, if you are replying to a message with unsupported encoding like UTF-16LE. (workaround for the Bug 961983)
Email signature for Thunderbird - WiseStamp Requires Restart
Switch Thunderbird email signatures. Supports Gmail, Yahoo, AOL & Outlook webmails. Youtube, Facebook, Twitter icons & more
Emoji Requires Restart
Add emojis to your e-mails.
Emoji Menu Requires Restart
Adds the ability to easily insert emojis into your composed messages in Thunderbird.
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.
Ethical signature Requires Restart
Add a button to the email composition toolbar, which lets you insert an ethical signature.
Extra Format Buttons Requires Restart
Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.
FastCC Requires Restart
A Thunderbird extension that let you switch to cc: with the ALT+CTRL+C keyboard shortcut!
Flex Confirm Mail Requires Restart
Confirm mail address and attachments based on flexible rules.
Flexible Identity Requires Restart
Selects an identity based on the recipients list when sending an email
forcebutton Requires Restart
This add-on can resend mails, so you "force" the other side to answer. It could be useful at corporate environment.
Get before Send Requires Restart
Get messages for the account which is bound to the identity then send the message when you click the toolbar button or the menu item. If your SMTP sever authenticates using POP(IMAP) before SMTP, the extension is useful.
gLOC for Thunderbird Requires Restart
gLOC - a link that lets you find your way! Once you create your own gLOCs at https://app.gloc.io, you can easily insert them into your emails in Thunderbird. You can also use gLOCs someone else shared with you. Product of Wayz Solutions GmbH Germany.
Highlight External Addresses Requires Restart
This extension helps to warn the user when composing a message to a mixed group of people both in and out of the sender's organization. External addresses are highlighted in orange as a reminder.
Highlighter Requires Restart
Quickly highlight some text in Thunderbird message composing windows.
HtmlHighlightr Requires Restart
Provides source code highlighting in editor's "Insert HTML" dialog.
hubiC for Filelink Requires Restart
Add hubiC support to Thunderbird's Filelink feature.
Identity Checker Requires Restart
This add-on checks to sender identity when send a message.
IMAP Draft Unread Requires Restart
This is a Thunderbird addon that lets you customize the behavior of the IMAP draft unread messages. No more new mail notifications for your drafts!!