Because five years down the road, nobody wants to have to remember to stick that in when the vendor-specific version is removed. An example of someone who didn

Because five years down the road, nobody wants to have to remember to stick that in when the vendor-specific version is removed. An example of someone who didn't do this: https://bugzilla.mozilla.org/show_bug.cgi?id=765645 https://bugzilla.mozilla.org/show_bug.cgi?id=765645