I've been using Firefox exclusively ever since it was Firebird 0.7, every day, on scores of computers using Linux and BSD and Windows from 95 to 10, and I just

I've been using Firefox exclusively ever since it was Firebird 0.7, every day, on scores of computers using Linux and BSD and Windows from 95 to 10, and I just don't remember it ever really crashing. I'm sure it's happened at some point, but it's rare enough that I can't recall a single instance. But I've never used it on macOS, so I'm guessing that's what you're doing. I hear the Mac port is worse than the others in terms of stability and performance. If true, that's a pity, but Firefox really is rock solid on other platforms.