And I'm not alone. Google search for thunderbird "you have chosen" "from:mailbox"
Turns out quite a few postings with this problem. There are two kind of reports:
- TB (any version) had worked fine, until one day it stopped opening attachments
- Everything worked fine in TB2 but after upgrade TB3 won't open attachments
I have two machines that I have upgraded, one belongs to the first group, the other to the second group.
Some of these postings date back to 2005. They also are not Linux specific.
My guess is TB at some point has clobberred on of its config/settings files, can't parse it anymore.
When you click an attachment it "wisely" provides info like this to the user:
You have chosen to open
which is Word Document
Would you like to save this file?
<save file button (disabled)>
Yes, the save button is grayed out so you can not actually save
If instead you right click and choose Save As you can save it.
However for some other document (text file) it show a dialog where I can choose an application to open the document, or specify a new application. I enter /usr/bin/kwrite and then get a dialog saying:
Error - KWrite
klauncher said: Unknown protocol 'mailbox'
You'd think the later problem is an indication that the document wasn't attached properly... I created this email message in same TB used TB to attach the file and mailed it to myself.
Moreover, I used a third machine still running TB2 to retrieve the same email from the mail server and the attachment opened in kwrite no problem.
Any ideas how to fix (short of reinstalling TB2) would be greatly appreciated