Last few days I found out that when I open Google Chrome and the laptop's fans start working really hard and I can not touch the mousepad because of heating.

I use Ubuntu 11.10 on my Toshiba A350-22z laptop and monitor CPU and hard drive temperature. Both cores reached 104 Celsius and I read somewhere "if your processor reaches 105 Celsius it harms itself". I cleaned the inside of of laptop a year ago but there is a point when the weather reaches about 20 Celsius there was no problem. I know hardware cleaning is the best solution but how can I solve with another way? I think the problem is related to the hot weather outside. Is there anybody that has the same problem? In addition to Google Chrome, I realized that when I open online video, the processor temperature increases very quickly.