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Firefox installed by snap: how to open downloaded files?

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locking this thread as duplicate, please continue at https://support.mozilla.org/en-US/que.../1284465

Firefox came preinstalled as snap package on ubuntu 18.04, but has been giving trouble since

I'm running through problems when downloading files:


   The open with dialog application does not see most applications, in particular it doesn't see evince nor libreoffice. The dropdown defaults to "Url Handler Script (default)", which does nothing with my files.
If I choose to open the file with firefox (say a pdf file) a blank page appears

All these options work with chrome though..

The only way I can view a downloadable file is by saving it somewhere in my home directory and then open it which is a pain!


Obviously snap firefox doesn't access anything beyond thatI've successfully installed Firefox as a snap package (done by default by installing it through Ubuntu's "software center"). It does work, and give me a more recent version of Firefox than the one available through APT.

I'm running through problems when downloading files, though:

   Saving them in /tmp/ does not work, since the snap version of Firefox uses a different filesystem than the one of the host computer, hence Firefox and non-snap applications see different content in /tmp/.
   The open with dialog application does not see most applications, in particular it doesn't see evince nor libreoffice, which I've installed through APT. The dropdown defaults to "Url Handler Script (default)", which apparently does nothing with my files.
   If I save a downloaded file, the open containing folder button in the downloads list does not work. I'm guessing that it tries to open nautilus, but fails to do so because nautilus is a non-snap application.I've successfully installed Firefox as a snap package (done by default by installing it through Ubuntu's "software center"). It does work, and give me a more recent version of Firefox than the one available through APT.

I'm running through problems when downloading files, though:

   Saving them in /tmp/ does not work, since the snap version of Firefox uses a different filesystem than the one of the host computer, hence Firefox and non-snap applications see different content in /tmp/.
   The open with dialog application does not see most applications, in particular it doesn't see evince nor libreoffice, which I've installed through APT. The dropdown defaults to "Url Handler Script (default)", which apparently does nothing with my files.
   If I save a downloaded file, the open containing folder button in the downloads list does not work.
Attached screenshots

Modified by philipp