[Ilgaz]

Let me tell couple of sites you may experience such stuff.

1) Slashdot (.org), when you enable the "new moderation system". They managed to make a evil Browser benchmark/error test without knowing it. We can't blame Slashdot since I don't think they are happy hitting unknown browser glitches either. It happens on Opera 9.10, Omniweb and Safari and interestingly, Omniweb is the least effected.

2) Digg (.com) stuff with huge amount of replies (1000+). Another thing which was never intended but it became so common (including Firefox) that it became a common joke there about browser stability test.

The web switching to some never thought before type of functionality and it hits browsers/html renderers since those features were never used that way on popular sites. You know the new fashion tricks such as "disappearing messages". Before Youtube, Flash video was used only on couple of sites which weren't so popular, Flash was basically "jumping smiley ads" for common websites. Now there are terabytes of streaming done daily over flash and even end user homepages carry flash videos.