A couple things: - If you need to restart the browser, temporary containers are persistent. Several times I've lost a session from an incognito window because

A couple things: - If you need to restart the browser, temporary containers are persistent. Several times I've lost a session from an incognito window because Firefox wanted to restart and wouldn't let me load any new pages until I did so. - Pages visited in containers are still included in your browser history, which can be useful if you want to find something again later - You can have multiple temporary container sessions running at once; while all incognito windows share a session, cookies, etc.