I need to move my Google Chrome saved passwords to Firefox, but I don't trust Firefox, so I need to host my own credentials storage. Firefox isn't all flowers

I need to move my Google Chrome saved passwords to Firefox, but I don't trust Firefox, so I need to host my own credentials storage. Firefox isn't all flowers and sunshine either, but at least it's not Chrome, where I can't run an ad blocker anymore. Absolutely unacceptable Alphabet