Mozilla has an extension so you can do this without Nightly. https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/ https://addons.mozilla.org

Mozilla has an extension so you can do this without Nightly. https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/ https://addons.mozilla.org/en-US/firefox/addon/multi-account... I mostly use it to manage the 3 google accounts i use daily