Persistent sticky notes for Thunderbird associated to mails...
Change priority of the received messages from the toolbar button and the context menus...
Add a new unread-favorite-recent folders treeview.
Add Notes to messages. Notes are stored in a plaintext file, typically in your profile. The plaintext notes file can be stored elsewhere to enable sharing of notes across a...
Protects you from phishing attacks by verifying the From: address domain name of emails as you read them. Sender Policy Framework (SPF) and DNS-based reputation lists are used.
Allows copying attachments to the clipboard
This extension allows you to choose the identity of your new email from a popup menu directly from the Write button. This feature behaves in a similar manner as the Get Mail pulldown menu. In addition, the default behavior of the Write button is...
Resizer for inline and attachment images (only JPEG format).
For Windows only.
Downloads new message headers (and bodies, if configured) immediately when Thunderbird detects new messages in an IMAP folder - that's more or less what the "download_on_biff" preference promises to do, but somehow fails to deliver...
The Remember Mismatched Domains extension for Firefox and Thunderbird adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows. When selected the domain...
This extension will enable you to organize your status bar icons. You can now rearrange or remove any item (icon or text) in the Firefox status bar. If your status bar is full and cluttered like mine was, give this a try.
Allows Thunderbird to send message without a subject.
Visit my Allow Empty Subject site for recent versions and news.