Mozilla is not a small business. Businesses play games with each other because they are competing in an open market. End users do not have to do this. I don't work at Mozilla, I do not know what their situation is, but saying 'no way' to the whole thing and using a technology that they know nobody else will use and fragmenting web video is not helping end users.
If we're lucky, this is all actually maneuvering on the part of Mozilla to get the MPEG LA to lighten their terms with Mozilla.
That's the second time in this thread you've implied that only Mozilla is affected by H.264 patent fees.
Apple and Google have already tried to get MPEG-LA to freely licence a lower quality subset of H.264 to break this impasse. The individual patent holders of that subset weren't impressed by this suggested compromise and even if they were it would still be a bait and switch technique that leaves open source products as second class citizens.
One more thing, you call it an open standard elsewhere. If a standard is described as "open" then that traditionally means no patent fees. H.264 is a standard, but it is not generally held to be an "open standard": http://en.wikipedia.org/wiki/Open_standard
If we're lucky, this is all actually maneuvering on the part of Mozilla to get the MPEG LA to lighten their terms with Mozilla.