A workaround was suggested by a member of the community to turn off both hardware and Flash acceleration. It worked fine (no crashes since), but runs very slowly. In particular, takes five seconds to exit and is often still listed as a running process. Very slow in connecting to Web pages, and very slow loading them because of the graphics. Very slow in loading video. I expected slower responses, but this is REALLY slow. I'm running 64-bit Windows 7 and an Nvidia GE Force 7800 graphics card with all the drivers updated and the plugins for Firefox mostly set on "ask to activate". Should I expect this much reduction in performance when the workaround I mentioned was put into place? If so, it's half a loaf at best. The only thing questionable is that I have two Youtube downloaders that I am trying, but I made the assumption that these were only applied when you downloaded something from Youtube.