Firefox Forum podrške

I recently removed Firefox from my PC with the intention to reinstall it right away via the windows store, for the purpose of getting Firefox updates automatically.

However, I have been trying in the past few days to install the app and am running into the same error as the installation begins.

I deleted any reminiscence of Mozilla folders from my C drive and ran deep cleaning of cache files on my PC and nothing helps. Please help me resolve this issue, I would like to keep using Firefox...

Thanks:)

I already have a profile with all the extensions, passwords, bookmarks, etc., that I want, with FDE. I want to start using Nightly, but dislike the continual moving of passwords & bookmarks, so I just want to use Firefox Sync for this.

(1) Is Sync a good option for me here? I would use FDE & Nightly on the same laptop.

(2) If my plan is ok, what is the best way to start with a new Nightly profile (which I would then Sync)? I tried deleting my old Nightly profile, uninstalling Nightly, and then downloading & uninstalling Nightly again, but every time I do this (including a reboot after uninstalling), I get a profile cannot be loaded error message every time I try to start Nightly. I don't want to use an old profile with Nightly, because I do not want to sync old data at all.

Suggestions?