I have been hoping to find a solution to the "heating issue" I have with Opera and other chromium based browsers but have not seen any "hints." iCab, Safari, and Firefox do not act this way on my Macs. Do other people just let their Macs heat up and fans run full speed and live with it? I can only assume they do since both of my MacBooks react the same. If it was only one I would suspect another cause but it always seems to be when using a chromium based browser. Now that I have downloaded and installed Firefox I think I have found browser nirvanna.
Opera for Mac