Re:Firefox 81.0
by mozillamaxx on Tuesday September 22, 2020 @12:36PM
(#24556608)
MAC Containers developer here. This treatment is done by default in the Facebook Container add-on. It's more of a question of how to handle the setting on a per domain/Container in the UI.
Follow along for the root domain issue here: https://github.com/mozilla/multi-account-containers/issues/1...
If I go to https://mayflowermadame.bandcamp.com/ and select "always open this site in...", and I then open https://vandrer.bandcamp.com/ having not visited it before, it doesn't open the site in my Bandcamp container.