Steps to reproduce:

Firefox 103.0.2 snap in Kubuntu attempts to access the Gimp application help file index.html which is located in folder "/usr/share/gimp/2.0/help/en/" using command URL "file:///usr/share/gimp/2.0/help/en/index.html".

Actual results:

Firefox is unable to access that folder and reports the following:

File not found

Firefox can’t find the file at /usr/share/gimp/2.0/help/en/index.html.

Check the file name for capitalization or other typing errors.
Check to see if the file was moved, renamed or deleted.

Expected results:

Firefox should be able to access the folder and files at that location since they are accessible using the same user id with a bash command line command:

cat /usr/share/gimp/2.0/help/en/index.html

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

This specific case was fixed in https://github.com/snapcore/snapd/pull/11861/files#diff-7c98390efda950b618cf7206644c967135dcf1761011b8bd015a3b3e6027834a