Opera used to be a fantastic web browser, with a custom high-performance Presto rendering engine and features like tabbed windows that didn't show up in competing browsers until years later. However, the modern Opera browser is a shadow of its former self, reliant on chasing trends and meme advertising to
I’m confused since Firefox Sync has been letting you sync/backup your passwords, bookmarks and history for a decade or two at this point, and you can even self-host the sync server.
I don’t know the complete FF password manager details (Bitwarden user here) but where does Firefox fall short for you?