Comment 6 for bug 286116

I'd like to add that I'm running Firefox 3.0.14 in Kubuntu 9.04 and this is also affecting me. Any mouse dragging related to bookmarks causes the whole system to freeze. Since there isn't really any mouse dragging of anything else in firefox (not counting specific webpages), I'm going to go ahead and guess that it's not really related to bookmarks, but is a dragging problem in general.

Also, this bug should no longer be marked as invalid. If the original reason was due to a language barrier, there are now several english speakers who have reported it.