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When I try to open a PDF file from an attachment in an email in Thunderbird, I only get a few applications and none of them are appropriate to open PDF files:

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When I save the file to my HD, it opens by default with the correct application (Document Viewer) and I can also choose a lot of other applications:

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Edit: When I go to Preferences -> Attachments -> Incoming I don't see any filetypes that I can set any action for:

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Why can't I open this file with the correct application from Thunderbird? How to fix this?

gitaarik
  • 883

2 Answers2

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Did you install thunderbird via snap? I had the same issue.

After deleting the snap instance and reinstalling via 

apt-get install thunderbird

it worked well.

(Be aware: deleting the snap instance will automatically delete all the data, so backup your emails before doing that!)

cleary
  • 684
user3619358
  • 96
0

I see this is an old post, but I just had the issue and thought a solution might still be of value to someone. I was able to fix it by selecting 'Preview in T'bird' (see next sentence), then going back to opening in the PDF reader (Foxit, in my case). Get to Preview through Tools>Settings>General>(scroll down to) Files & Attachments. Select PDF in left side of box (not the binary PDF), then use drop down list in right side.

Gf Wl
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