My computer is noticeably slower when Firefox is running. Quite often, Firefox will grab the audio device and not give it back, silencing all other programs. Sometimes the fan will just spin up and the computer will sound like a hoover until I quit it. Over time it just uses up more and more memory, rarely giving it back. It's not unusual to look at the task list and see Firefox taking up 400+MBytes, even though you're doing very little. (Right now, it's taking up 420MBytes. All I have open is the HN page with this text box I'm typing in.) I also think it does something rude with the GPU, too - when I'm not running Firefox, the auto-hide dock pops up perfectly smoothly. When Firefox is running, though, it stutters as it pops up.
The X11 version is terrible to use over a network too.
(I had a whole different set of complaints about Safari.)
My computer is noticeably slower when Firefox is running. Quite often, Firefox will grab the audio device and not give it back, silencing all other programs. Sometimes the fan will just spin up and the computer will sound like a hoover until I quit it. Over time it just uses up more and more memory, rarely giving it back. It's not unusual to look at the task list and see Firefox taking up 400+MBytes, even though you're doing very little. (Right now, it's taking up 420MBytes. All I have open is the HN page with this text box I'm typing in.) I also think it does something rude with the GPU, too - when I'm not running Firefox, the auto-hide dock pops up perfectly smoothly. When Firefox is running, though, it stutters as it pops up.
The X11 version is terrible to use over a network too.
(I had a whole different set of complaints about Safari.)