firefox 4 crashes after last nspluginwrapper-devel

[Barbara]

I'm referring to this commit:
http://www.freebsd.org/cgi/getmsg.cgi?fetch=422486+0+current/cvs-ports

After updating nspluginwrapper-devel, firefox instead of randomly freezing for 
few seconds after closing o reloading a tab with a flash running, crashes, 
which is even more annoying.
Now after the crash I have 2 core files: one for firefox-bin and one for 
npviewer-bin.
Anyone else seeing the same?

Thanks
Barbara