Tar-Tiff plugin for Thunderbird

I use Thunderbird and have friends that use Mail.app. Mail.app inlines tiff images when images are copy pasted into mails. For some reason relating to web-standards Thunderbird seems unwilling to support perfectly free things as libtiff for solving this issue. See bug here: https://bugzilla.mozilla.org/show_bug.cgi?id=160261 The worst part in particular is that Thunderbird fails to make the file in any way accessible, even for downloading and viewing in an external program.

So I started looking at solving this with a plugin of my own and I found some good pieces out there: 

A: http://code.google.com/p/tiffus/ - A java script library (written i GWT) for parsing TIFF among other files. This would make loading OS-independent and easy to integrate for sure. 

B: http://blog.xulforum.org/index.php?post/2011/03/14/Basic-MimeMessage-demo - A small MimeMessage inspector that could be modified to look for inline images and attachments. 

C: Time to test things out. Or perhaps a sponsor for the full Thunderbird extension?