Some APT installed programs are not recognized as installed (eg: Firefox)

[Bruno Nocera Zanette]

Some APT installed programs, like Firefox, are not recognized as installed. The app gives me a list of Snap pkgs of Firefox but it doesn't allow me to uninstall the current installed version (that came pre-installed using apt).
Also, it doesn't recognize some other packages installed via ".Deb". For instance, "MongoDB Compass". In this case it doesn't even list the package as installed.

$ snap-store --version
gnome-software 3.36.1

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal

$ dpkg -l | grep firefox
ii firefox 75.0+build3-0ubuntu1 amd64 Safe and easy web browser from Mozilla
ii firefox-locale-en 75.0+build3-0ubuntu1 amd64 English language pack for Firefox
ii firefox-locale-pt 75.0+build3-0ubuntu1 amd64 Portuguese language pack for Firefox

$ snap list
Name Version Rev Tracking Publisher Notes
atom 1.45.0 248 latest/stable snapcrafters classic
core 16-2.44.1 8935 latest/stable canonical✓ core
core18 20200311 1705 latest/stable canonical✓ base
gnome-3-34-1804 0+git.2c86692 24 latest/stable/… canonical✓ -
gtk-common-themes 0.1-30-gd41a42a 1502 latest/stable/… canonical✓ -
node 12.16.2 2632 12/stable nodesource✓ classic
snap-store 20200415.e028804 394 latest/stable/… canonical✓ -
spotify 1.1.26.501.gbe11e53b-15 41 latest/stable spotify✓ -

[AsciiWolf (asciiwolf)]

This is *not* a duplicate of #1873040. It is a completely different issue.

[AsciiWolf (asciiwolf)]

I think that the issue with Firefox not displaying in Snap Store should now be fixed in Ubuntu 20.04. There was a problem with Firefox/Thunderbird having their icons as symlinks which were not supported by AppStream generator.

[Marcus Tomlinson (marcustomlinson)]

Hi Bruno, could you please confirm that this issue is now resolved?

[Bruno Nocera Zanette (brunonzanette)]

Marcus, i'm sorry for the delay.

It works if i search for Firefox and then click on it. The "installed" label is shown and i have the option to remove it. However, it still doesn't appear on the "installed" tab, like the other programs.

On the other hand, i also tested with MongoDB and Chrome, and both correctly appears as installed apps on "installed" tab. They're shown with no icon and with the original package name, but that's ok. The only minor problem is that i can't search for them. The only way to access them is using "installed" tab.

I'm testing it with 20.04.1 Beta, with proposed updated, fully upgraded.

[Carlos Pita (carlosjosepita)]

I think this may be a duplicate of https://bugs.launchpad.net/snap-store-desktop/+bug/1873690, although this generalizes that or, at least, it's not restricting the issue to pre-installed software.