You really could not be more wrong. WebKit on OS X has a native Obj-C plugin system: http://developer.apple.com/mac/library/documentation/InternetWeb/Conceptua

You really could not be more wrong. WebKit on OS X has a native Obj-C plugin system: http://developer.apple.com/mac/library/documentation/InternetWeb/Conceptual/WebKit_PluginProgTopic/Tasks/WebKitPlugins.html http://developer.apple.com/mac/library/documentation/Interne... If you want to add VP8 or Theora support in <video> to WebKit apps on OS X, just install a QuickTime decoder for them: http://xiph.org/quicktime/ http://xiph.org/quicktime/ — Want to add any codecs to Firefox? You're completely fucked, and have to fork the whole stack.