In a strange throwback to the past, a new but has been found that will let any website crash your computer.
All they need to do is have a webpage with maybe an image with the extension of .$MFT and Windows will try to open and work on it. Windows never quite releases the file and it will slow down the machine and in some cases cause a Blue Screen of Death (BSOD).
No known patch yet, still waiting for Microsoft to issue an update.
Details here: Arstechnica