Hacker News Reader

Check out Containers - it goes a long way towards solving this problem. I also used to rely heavily on Chrome profiles

https://wiki.mozilla.org/Security/Contextual_Identity_Projec...

Containers seem like a compromise that I can live with to give FF57 a better shot.

They share history/bookmarks, which I'm not a fan of. I prefer my work profiles not to have reddit/hacker news etc. in the auto fill address bar.

Maybe you could use a different theme for each profile, or put different buttons or buttons in different order in the toolbar?

Maybe there could be an extension that shows the name of the current profile and/or an image/text chosen by the user in the toolbar or the tab bar? The extension would have to be installed in each profile, but this is to be done only once.

Please still my idea, whether you are a Firefox or an addon developer!

Would containers work better for your use case?