I use around 10 browser profiles, each of which has its own set of bookmarks, plugins, self-enforced rules, etc. I want to synchronise browsing history, bookmarks, plugins using a single account. They are managed with a dedicated Firefox account, but I was wondering if I can self host accounts so that I can synchronise stuff over my VPN, and I don’t have to do mail verification every time I create a new profile. But I can’t find much on how online.

I know syncserver-rs but that is not enough. The accounts are still registered with Mozilla’s server.