Works great with Thunderbird.

Works well with the default mail client. Configurable in how the email is formatted (subject and body can be modified to include specific text you provide). Also can be configured with common recipients so you can pick that right from the extension instead of in the email.

works great on Win 7 64-bit, Thanks

This is exactly what I was looking for. I don't know why Firefox doesn't have this basic feature built-in, but this does it perfectly.

It would be nice if it could be configured to use webmail of choice...