Joel writes "Over six months ago, Google announced it would start phasing out support for Internet Explorer 6 on Orkut and YouTube, and started pushing its users to modern browsers. The search giant has now given a specific kill date for old browser support on the video website: "Support stops on March 13th. Stopped support essentially means that some future features on YouTube will be rolled out that won't work in older browsers."
YouTube will have an interstitial appear when users on older browser try to watch a video on YouTube. Google says the interstitial will show up indefinitely every two weeks until the user upgrades to the most recent version of their browser. Google deems anything below IE7, Firefox 3.0, Chrome 4.0, and Safari 3.0 as an "older browser."Users on these browsers will still be able to watch YouTube videos, but additional features that Google plans to roll out may not be supported in these older browsers."