On the standards track: Yes
Is Experimental: No
Is Deprecated: Yes
In Chrome version 9 on 2011-02-03
In Chrome Android version 18 on 2012-06-27
In Edge version 12 on 2015-07-28
In Firefox version 2 on 2006-10-24
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 7 on 2006-10-18
In Quest Browser version 5.0 on undefined
In Opera version 15 on 2013-07-02
In Opera Android version 14 on 2013-05-21
Not in Safari
Not in Safari on iOS
In Samsung Internet version 1.0 on 2013-04-27
In WebView Android version 4.4.3 on 2014-06-02