Firefox has an experimental (opt-in) feature called "Containers" for this: https://testpilot.firefox.com/experiments/containers https://testpilot.firefox.com/ex

Firefox has an experimental (opt-in) feature called "Containers" for this: https://testpilot.firefox.com/experiments/containers https://testpilot.firefox.com/experiments/containers You can create a container for each compartmentalized context (work, social media, whatever) and then create tabs assigned to diffent containers. They're visually distinguished as to which tab is "in" which container, but otherwise you can manipulate and mingle them freely with the rest of your tabs. Each container's persistent state is isolated from both the other containers and your default browsing context.