I've had one of those derp-mah-brain-dont-wanna-work days and I'm somewhat embaressed to ask this, but just as of today when I load any video on youtube, I get this error Error: BVDCORE.videoFormats is undefined Granted the video then loads and plays just fine, but having to dismiss the dialog box is irritating after awhile. I'm running Firefox 8 (Nightly/Minefield), granted it's a Beta version, but it works very well. It only started happening today and I know neither it or me have done any automatic and/or manual updates. So update cause is ruled out of the question. I use Ubuntu 11.04 as well. No Windows install, so can't blame it on Windows.. that's ruled out of the equation. I can also rule out Ubuntu itself as I haven't updated or done anything drastic recently (Firefox 8/Nightly was installed weeks ago btw.) Has anyone else had this problem with any version of Firefox?