Originally Posted by Myrdin

Does it require a full reinstall of the browser or can you just update your existing Firefox into the new version ?

Also will you be able to transport your search history, bookmarks etc into the new build ?

It's an upgrade compatible with your settings, but beware that if you use some old extensions, they may be incompatible (that's the reason I'm sticking to FF56 but play FKG on Chrome)