Often when I start Firefox, instead of downloading the webpage, the pendulum starts moving to and fro while it starts slowly using the memory of my laptop (7.7 GB), until, after a quarter of an hour or more of more, it uses up about 95% of it (I've followed the process on the Task Manager), and then it finally downloads the page, by which time the computer is quite sluggish, and occasionally the laptop is unresponsive, making me switch it off and reboot it. When it doesn't download the page right away I've learned to turn it off, sometimes from the Task Manager, and try again. Then sometimes, somehow, it works OK, I still haven't found out exactly how to do this. Then, once it starts working, to avoid the problem I do not turn it off, and Firefox remains OK as long as I do not reboot the laptop, which I seldom have to do. Does anybody else has this problem? Any ideas?