User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 If you view the RSS pages at livejournal such as http://www.livejournal.com/users/news/data/rss or some other places where xml is shown as a document tree, if you middle click to scroll, the nicely formatted document tree disappears and the page displays as completely unformatted text. Reproducible: Always Steps to Reproduce: 1.open firefox 2.go to http://www.livejournal.com/users/news/data/rss 3.click the scroll wheel down Actual Results: The nicely formatted document tree disappears and the page displays as completely unformatted text, the scroll crosshair appears, but if you middle click again, the scroll cross doesn't disappear. Expected Results: The scroll crosshair should have appeared, the page should have stayed as the nicely formatted document tree and allowed you to scroll around. The theme is the qute 3 theme, although I remember seeing this problem using other themes as well in the past.

*** This bug has been marked as a duplicate of 215762 ***