i see that opera, safari,chrome and all the rest are very flat. ok firefox is climbing a few points and ie has dropped a few ok so? not like it went from 70% to 10% ... and not like firefox has "crossed over" ... now if that trend keeps up perhaps next year
they might have a meeting point.
I'm not going to argue, but consider that your graph is using data that is over a year and a half old while the one I posted is current.
"Video is so fragmented each browser needs a different codec"