This. Especially if you use hotkeys for opening container profiles. Since the FireFox UI doesn't allow for container profile reordering in the UI you have to rebuild your profiles in the correct order (because hotkeys are mapped to order of creation based on numeric value) and reselect the appropriate icon and color to match the profile you're used to. Right now containers are not a welcome citizen with regard to Sync. I really enjoy containers but they need to be front and center and a first class citizen in the profile with Sync.
