It requires using special command-line flags (default behavior of Firefox prevents running multiple sessions concurrently, on purpose). It is also, performance

It requires using special command-line flags (default behavior of Firefox prevents running multiple sessions concurrently, on purpose). It is also, performance-wise, was not so good. I am a diehard Firefox user, and I only use this crap feature on Chromium anyway. Firefox is what I use for my personal lif, as it is in my opinion a better browser, but a more trustworthy org. Chromium/Chrome is for work, and I do not entrust Google for anything more than that these days