[8bitsrule]

I too lost my multi-containers and assignments. I was just reading this (2017) discussion: https://github.com/mozilla/multi-account-containers/issues/3... and noticed mention of file 'containers.json', which I found in my current Firefox profile. It contains the descriptions of the containers I created since yesterday (for the 3rd time).

So it looks as though a manual backup of that (or the whole profile, knowing its in there) at least will end that chore.

But you still lose the Container -> websites associations. The same page recommends: "An effective way of exporting and importing containers safely is using ffcontainers."

The page for that syncer is here: https://github.com/pierlauro/ffcontainers ... but it's on hiatus at this moment.

[lugg]

containers.json wasn't enough in my experience. Still went through some kind of reset due to the way the plugin initializes.

ffcontainers looks promising but couldn't get it to work (spaces in my path..) probably needs a bit of a clean up.