I hate cookies (especially the "super" ones}, i bookmark any interesting or hard-to-find-again pages and configure my browser to not remember a thing (like a private browsing).
I also make a bookmark back-up every now and then, and try to have my browser (mostly firefox) as light as possible (mimimal plugins).
Never had any serious problems or browser freezes like that.
If i have compatibility issues, i use the old trusted ie. Works every time.
But, i usually end up doing some additional cleaning with the help of a software from time to time.
gigabyte X58A-UD3R rev.2, core i7 975 3.9ghz (stock voltage), windows 8.1 64-bit, corsair 12gb DDR3 1600mhz 7-7-7-20 RAM, xfx HD 5970 + gigabyte HD 5970 (950mhz/ 1100mhz), coolermaster ultimate 900w PSU.
amd catalyst 14.11.2 beta