I had a lot of trouble yesterday (using Safari on a Mac) that I finally determined was caused by poorly coded animated banner ads at the top of each page, which were taking up all available processor and memory and locking up my browser. Using an ad blocker (Adblock Plus) solved all problems immediately. Not good for the sponsors, but I don't come to a straight razor forum to have my system locked up by ads for cartridge razors that are written with memory leaks in them.