People interested in this may also like this add-on, which I've been using for years: https://addons.mozilla.org/firefox/addon/private-tab/ https://addons.mozil

People interested in this may also like this add-on, which I've been using for years: https://addons.mozilla.org/firefox/addon/private-tab/ https://addons.mozilla.org/firefox/addon/private-tab/ It lets you open private tabs in the same window as regular tabs.