If nspluginwrapper is not used and the problem is not related to compiz this helps:
GDK_NATIVE_WINDOWS=TRUE firefox
For me everything worked with kde, awesome... but in fluxbox not. With the variable set it works now.
If nspluginwrapper is not used and the problem is not related to compiz this helps:
GDK_NATIVE_ WINDOWS= TRUE firefox
For me everything worked with kde, awesome... but in fluxbox not. With the variable set it works now.