Never heard of SideKick before reading this but after some cursory googling, it sounds like a thing I wouldn't touch with a 10-foot pole. > switching between C

Never heard of SideKick before reading this but after some cursory googling, it sounds like a thing I wouldn't touch with a 10-foot pole. > switching between Chrome profiles You don't _have_ to switch between Chrome profiles, as in close one to open another... you can just have one or more separate windows open for each. > Browser extensions are still vetted by respective vendors like Google & Mozilla No, that is a common misconception. And it's what the browsers and smartphone app stores have somehow gotten everyone to believe. The truth is that anyone can upload whatever they like to all of these. The uploaded software might be run against various scanners to check for commonly-known exploits and API rule-breaking but they can't check for everything that an attacker can think up, so "real" threats are basically never discovered until some critical mass of users complain about it. But I digress. Anyway, it sounds like what you want is Firefox and the Multi-Account Containers extension: https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/ https://addons.mozilla.org/en-US/firefox/addon/multi-account...