None of the browsers I use across those devices sync settings well. Even if it was 100% firefox, I don't want to trust the cloud, and can't be bothered to set up a mozilla sync server just for this (I don't use bookmarks, and there aren't any other settings I want to sync).
Also, as it is, I make 100% of my experience better by switching all the browsers to a search engine that provides better results than google and has !bang support.
There are at least two such search engines: duck duck go and kagi.