There is a plugin that will sync the actual containers, but it doesn't sync your rules you setup to always open site X in your personal container, etc.
Without that, its useless to me. There is a bugzilla [0] for it, and 3 years ago, it was said they were going to look more into it, and nothing really since.. Its frustrating.
Predictably, synchronizing data is complicated, so it's taking a while and we're trying to do it in a way that doesn't destroy any existing data. So we'll be doing some heavy internal testing on it before we release it.
Without that, its useless to me. There is a bugzilla [0] for it, and 3 years ago, it was said they were going to look more into it, and nothing really since.. Its frustrating.
[0] https://bugzilla.mozilla.org/show_bug.cgi?id=1288858