If I upgrade from Kubuntu 20.04.5 to 22.04.1 will my .deb version of Firefox be replaced by the snap version?

Will it keep all my settings, history and passwords? Passwords I can export to a .csv, so that would not be the main problem.

  • I immediately uninstall all snaps. And then install the ppa version. Details: You also have to reset priorities as shown or it will reinstall the Firefox snap. omgubuntu.co.uk/2022/04/…
    – oldfred
    Commented Dec 11, 2022 at 4:30

1 Answer 1


On 22.04, the firefox package is described as transitional deb->snap. Hence yes, the deb version will be replaced by the snap version.

In my case (21.04->21.10) it was snapified upon upgrade, and the settings were kept (i.e. the Firefox profile was copied to the snap namespace).

In your LTS-to-LTS scenario, I’m pretty sure things will work in a similar manner, if not more conservative, but in case you have doubts, you can always copy your FF profiles (~/.mozilla/firefox) to a safe place before upgrading, just in case.

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