Rated 4 out of 5 stars

what would be the syntax to open a pdf reader on the attachment?

Rated 5 out of 5 stars

Does exactly what I need. I wrote a wrapper for handling files with a special content, now I can call that wrapper directly with 2 clicks. Thanks! :-)

This review is for a previous version of the add-on (0.9.0). 

Rated 5 out of 5 stars

Works great. I regularly receive .DAT files (text files) and Thunderbird didn't know what to do with them.

This extension opened them up in Notepad, right from the mail interface.

This review is for a previous version of the add-on (0.9.0). 

Thanks for using.

By the way, since Thunderbird 91.4.1, you can directly open ".DAT" files or such with correct viewer.

Check TB release notes from:
https://www.thunderbird.net/en-US/thunderbird/91.4.1/releasenotes/

> Temporary files created for forwarded attachments sometimes had the wrong extension