I've been using Firefox since Quantum, too. The one place where I consistently run into problems is the debugger - it's much slower than Chrome's, and sometime

I've been using Firefox since Quantum, too. The one place where I consistently run into problems is the debugger - it's much slower than Chrome's, and sometimes it gets stuck with a "Loading..." in the source view that never loads. I use it... But sometimes I get frustrated enough to fire up Chrome to debug something.