I'm guessing the general error is from a plugin, not Firefox itself. I'm guessing gstreamer backend totem plugin, but I don't really know. For flash - on 64-bit get the "alpha" 64-bit plugin from Macromedia. It works quite well, and you don't have to worry about nsplugin-wrapper. For 32-bit obviously just use the non alpha 32-bit rpm package from Adobe. They have a yum file that will keep it up to date. For video - I use the totem plugin with xine backend totem. I compiled my own but I suspect that rpmforge has it. I found gstreamer backend totem to be most unsatisfactory. For PDF - the acroread package from Adobe has a 32-bit browser plugin, I don't know of a 64-bit plugin but you can use nswrapper - however, I prefer not to, and just download the pdf to view with evince or acroread. clemens at dwf.com wrote: > This is a new instalation of CentOS 5.2 > When I go to FireFox and try to watch a Video clip, some > files transfer, and then I get the message "General Error" in > the video window. > > I ASSUME some additional software needs to be downloaded, > but what from where? > > When running on that Other OS, a message comes up giving you > an opertunity to do the download.