I just had a glitch with the latest update to 102b, FF insisted I had an old version and would only let me make a new profile. So I had to set up multi-account containers again. I have specific sites opening up in each container, and I'd like to make a copy to make sure that if my profile gets goofed up somehow, I can always easily restore my setup with multiaccount containers just the way I like it. What do I need to copy, so that with a new profile, all I need to do is copy over some files? In my profile folder, I see an Extensions folder, as well as an extensions.json and extensions-settings.json. Are those the only folders/files I'd need to restore multi-account containers on a new profile? I have thought of using FF Sync, but I keep reading that it is not intended for copying, so much as sharing across different devices, which is not something I'm interested in. Should I just let sync copy my extensions, and then sign back in, in the event I want to restore addons to a new profile?