[angryasian]

You should try Firefox Mozilla containers

https://addons.mozilla.org/en-US/firefox/addon/multi-account...

This is official supported add-on

[czk]

This is the main reason I still use Firefox. Being able to have multiple color-coded containers for my different Azure roles at work, and being able to set a custom socks5 proxy on each container so I can route certain container tabs through a different VPN service.

[mdaniel]

Along with the excellent "open in container" extension, allowing launching URLs into containers: https://addons.mozilla.org/en-US/firefox/addon/open-url-in-c...

  $ firefox 'ext+container:name=HN&url=https://news.ycombinator.com/item%3Fid=41311435'

[worble]

I'm curious what the use-case of this extension is? Other sites/applications aren't going to be using this custom protocol handler, and if it's just for my own browser then I'm going to be creating containers and then setting "always open site in this container" and Firefox will always open that site in a specific container. What are you using this for?