John Hodrien wrote: > On Fri, 11 Sep 2015, Robert Arkiletian wrote: > >> does anyone running C6 have h.264 check box on www.youtube.com/html5 ? >> >> if yes, can you please post the output of > > My understanding, which may be incorrect, was that the firefox in EL6 > wasn't > built with gstreamer support, so adding that library isn't sufficient. I believe the EL6 build of firefox sets media.gstreamer.enabled to 'false' (see about:config) Try setting that to 'true' Although that appears to stop the libtotem plugins from working ? James Pearson