Identify any differences in browser fingerprint between Flatpak package and ordinary tarball

Flathub: https://flathub.org/apps/net.mullvad.MullvadBrowser github: https://github.com/flathub/net.mullvad.MullvadBrowser

The flathub community has published and maintains a package for Mullvad Browser. We should make sure package they ship has the same fingerprint as the tarball on the same system.

@thorin is this something you'd like to o?