Also you can have a number of different browsers on your system. IE, Opera, Firefox, Google Chrome

I use a plethora of browsers to check my HTML/JavaScript on myriad websites & subdomains. They all have quirks in operation & rendering. And don't even mention anomalies in the de-bugging modes!

Chrome gets used for translation and virtually nothing else. Edge for TV streaming because it is marginally faster. Firefox is the mainstay.