Seeing this again with FF3.5 RC2 (from ubuntu-mozilla-daily PPA), which I know is not a part of Ubuntu, but it seems this issue has been present for a while and is related to something other than Firefox itself, in combination with Compiz and GTK.
Seeing this again with FF3.5 RC2 (from ubuntu- mozilla- daily PPA), which I know is not a part of Ubuntu, but it seems this issue has been present for a while and is related to something other than Firefox itself, in combination with Compiz and GTK.