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When I try to open a link from a PDF using Evince I get an error message in the terminal.

env: ‘/snap/bin/firefox’: Permission denied

It used to work when Firefox wasn't a snap package.

I think the problem might be in Firefox's AppArmor profile, but I am not sure, and don't know how to modify the file to allow evince to open links.

Mohamed Wafy
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  • See this question and answer: How to open Zoom meeting link in Firefox in Ubuntu 22.04? for a similar problem. This is not an AppArmor problem. This is a snap feature. – user68186 Jul 08 '22 at 20:38
  • Thanks @user68186. The question was useful. It looks like to get it to work, I will have to uninstall the snap version and install a different one. – Mohamed Wafy Jul 08 '22 at 20:55
  • You may also use the Firefox's internal PDF viewer: Open in Firefox. – user68186 Jul 08 '22 at 20:59
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    A workaround is to replace the snap version of Firefox with the .deb version. https://askubuntu.com/q/1399383/124466 – Archisman Panigrahi Apr 08 '23 at 18:18
  • This is not a real answer but rather a workaround: here it is suggested to Evince's apparmor profile entirely to fix the issue. I guess it is safer to remove apparmor from Evince than from Firefox, since I imagine the browser to be a greater malware vector, but still the best solution would be fixing the profile, and I don't know how to do that either. Let us hope a more knowledgeable user sees this question now that I have bumped it with a workaround answer and added a bounty. – Federico Poloni Apr 07 '23 at 08:19

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