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
In Firefox for Android version 4 on 2011-03-29
In Internet Explorer version 6 on 2001-08-27
Not in Quest Browser
In Opera version ≤12.1 on undefined Removed from Opera version 15 on 2013-07-02
In Opera Android version ≤12.1 on undefined Removed from Opera Android version 14 on 2013-05-21
Not in Safari
Not in Safari on iOS
Not in Samsung Internet
Not in WebView Android