Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
Displays username (if available) next to SMTP...
Confirm mail address and attachments based on flexible rules.
Allows you to customise the message panel buttons to add a "Toggle Headers" button that will switch between showing and hiding the full headers.
A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.
Disable about:config feature of Firefox and Thunderbird.
Disallows to delete not-empty mail folders.
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
Forked from another add-on developed by ff_bob, added SPX header for Sophos security appliances
Removes 'EXTERNAL: ' from the start of an email subject if it is preceded by 'RE:' or 'FWD:' (case insensitive). The removal is done after the 'Send' button is pressed.
This is a dictionary file add-on for the Rikaichan extension.
Extension to import html into InfoQube
Rspamd spam filtering system score visualization.
The goal is to avoid to have to enter the master password on application startUp.
The extension is not self-sufficient, a script has to extract the master for a secure storage like gnome-keyring, then to transfer it through an environment variable.
This is a fork of AutoProxy, which can run the latest version of Firefox.
Confirms to send a mail with any attachment.
Dial phone numbers with Dialectic (Dialectic is for OS X only). In addition, when a page loads, phone numbers can optionally be highlighted and hyperlinked to dial Dialectic.
Firefox Integration for DownloadStudio
The addon modifies the mail.imap.min_chunk_size_threshold preference value by setting it to 100000000.
It is a workaroud to bug 1216951
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..
Add MEGA support to Thunderbird's Filelink feature.