Charles Curley wrote: >> Fujitsu ESPRIMO Q520 when opening some sh*tty web sitesin firefox the >> fan gets extremly noisy. > > I have a similar problem with some of my older laptops. I have switched > to Vivaldi (based on chromium), and that has reduced the problem > considerably. Firefox is a resource hog. Q520 is not a week/old machine it is i5 cpu