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Flexible Identity
Requires Restart
Selects an identity based on the recipients list when sending an email
CodeHighlight
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.
Path Linker
replyTo
Requires Restart
Adds a menuitem to the Mail context Menu to Reply to a different Mailadress
BccBlocker
Requires Restart
A ThunderBird extension to prevent the use of the Bcc field.
Bcc is the worst thing ever.
It kills transparency inside an organization.
If you use the Bcc feature, you should ask yourself why..
Identity Checker
Requires Restart
This add-on checks to sender identity when send a message.
random(signature)
Lovebird
Reply To All Reminder
Requires Restart
Asks for confirmation when "Reply" instead of "Reply to All" is pressed on an email with multiple recipients.
Attachemnt Encoding Detector
Requires Restart
To detect file encoding of attachments, this forces to Thunderbird to use an encoding detector for a specific locale instead of the generic one.
Posting Style Enforcer
Requires Restart
Automatically converts top-posted messages to use bottom-positng or vice versa. Interleaved posts are left alone. Detects automatically added text and supports a per-contact list of exceptions.
FastCC
Requires Restart
A Thunderbird extension that let you switch to cc: with the ALT+CTRL+C keyboard shortcut!
PennyPost
Requires Restart
This extension makes it very easy to generate and attach stamps to outgoing mail. It also automatically detects and verifies stamps on incoming emails. The MBound algorithm requires a 16MB fixed table to work, HashCash is more CPU intense.
Patch to Alert Invalid Addresses
Requires Restart
Shows alert if there is any invalid address in sending message.
Custom Sender Address and Reply
Requires Restart
Select sender mail address based on the recipient and reply with the same address
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.
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