On the standards track: No
Is Experimental: No
Is Deprecated: Yes
In Chrome version 6 on 2010-09-02 Removed from Chrome version 43 on 2015-05-19
Not in Chrome Android
Not in Edge
In Firefox version 3 on 2008-06-17 Removed from Firefox version 56 on 2017-09-28
Not in Firefox for Android
In Internet Explorer version 4 on 1997-09-30
Not in Quest Browser
Not in Opera
Not in Opera Android
In Safari version 5.1 on 2011-07-20 Removed from Safari version 16.4 on 2023-03-27
Not in Safari on iOS
Not in Samsung Internet
Not in WebView Android