On the standards track: Yes
Is Experimental: No
Is Deprecated: Yes
Not in Chrome
Not in Chrome Android
In Edge version 12 on 2015-07-29 Removed from Edge version 79 on 2020-01-15
In Firefox version 3 on 2008-06-17
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 5 on 1999-03-18
Not in Quest Browser
Not in Opera
Not in Opera Android
Not in Safari
Not in Safari on iOS
Not in Samsung Internet
Not in WebView Android
Not in WebView on iOS