Crippling Firefox Bug On Mac OS
There is a major bug in Firefox where if you hold down the mouse button to select text, or scroll, or anything inside the browser window, the Firefox CPU usage shoots up to nearly 100% and hogs your entire system until you let go. I just tested it using top and can verify that the CPU usage jumps to between 75-95% depending on the other applications in use at the time. For Powerbook or iBook users this is a major issue, considering your fans will probably turn on and you'll battery will drain much quicker.