I love containers as well. Does anyone know when/if they'll be coming to Firefox for Android and iOS?

Also, I really wish you would be able to specify which container you want in the Home button when using multiple urls for your default tabs.

So this:

    https://gmail.com/|https://gmail.com/

Would become something like this:

    {container:personal}https://gmail.com/|{container:work}https://gmail.com/