Firefox crashes (hangs, requires me to force close, and then doesn't actually clear the history) when i clear recent history if multiple tabs are open, i do this so i only lose the history and can maintain the tabs i want for the next session. I have always done this in Versions 3 without an issue, since moving to Version 4 it happens semi regularly. the more tabs i have open the higher the likelyhood of an error is anyone else experiencing this?

Windows 7 pro sp1 firefox 4 addons: no script, adblock, pterodactl, imagezoom, reddit reveal, java, tinyeye, better privacy.