I use Pinboard.in, and I am stuck with Iridium, a good but Chromium-based browser that is rarely updated (a year ago, for OSX) because Chrome does bookmarks decently, unlike Firefox, at least in my opinion.
I'm curious how Firefox comes off worse in your view, chrome seems to provide basic usage which Firefox also provides.
EDIT: just saw your other reply about it. Definitely can't agree, there's nothing fiddly with the way Firefox allows you to move, create, rename, delete, or update links and folders. Same functionality as chrome as far as I can tell.