On the standards track: Yes
Is Experimental: No
Is Deprecated: Yes
Not in Chrome
Not in Chrome Android
Not in Edge
In Firefox version 1 on 2004-11-09 Removed from Firefox version 62 on 2018-09-05
In Firefox for Android version 4 on 2011-03-29 Removed from Firefox for Android version 62 on 2018-09-05
Not in Internet Explorer
Not in Quest Browser
Not in Opera
Not in Opera Android
In Safari version 10 on 2016-09-20
In Safari on iOS version 10 on 2016-09-13
Not in Samsung Internet
Not in WebView Android