After creating a fresh installation of Ubuntu 24.04, I installed DEB Firefox from APT by following Mozilla’s instructions from here. But I noticed that it was secretly replaced with Snap Firefox. I was able to verify this by checking the About Firefox page. This is the third time I noticed this.
But it’s not obvious either. When I say ‘apt install firefox’, specially after adding their repository to sources.list, I’d expect to get a .deb from mozilla. Silently overriding my commands rubs me in a very wrong way.
It takes a little more than just adding a different repository to your package manager, you have to tell apt which to prefer:
echo ’
Package: *
Pin: origin packages.mozilla.org
Pin-Priority: 1000
Package: firefox*
Pin: release o=Ubuntu
Pin-Priority: -1’ | sudo tee /etc/apt/preferences.d/mozilla