I found this through searching - as I have a site that uses a lot of dropdowns and right-click menus - and they all fail in Firefox4 after a screensaver (in my case simple blanking) runs. This patch does not fix this issue for me.
Ubuntu 10.10
Firefox 4 (from PPA)
It does appear that tabbing away from FF4 and back again does seem to resolve it for me, as suggested above.
I found this through searching - as I have a site that uses a lot of dropdowns and right-click menus - and they all fail in Firefox4 after a screensaver (in my case simple blanking) runs. This patch does not fix this issue for me.
Ubuntu 10.10
Firefox 4 (from PPA)
It does appear that tabbing away from FF4 and back again does seem to resolve it for me, as suggested above.