This Version should fix the problem: http://nightlies.videolan.org/build/win32/branch-20081110-0203/ You can test the vlc plugin for firefox 3.0.3 at this site: http://altair.videolan.org/~dionoea/vlc-plugin-demo/ Good luck :D I'm running 0.9.8a and am still getting this issue. FF 3.1b2, Vista x64....