This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The HTMLInputElement.mozSetFileNameArray() method sets the names of the files that selected on an HTML input element.

Note: This method is Gecko-specific and is not available in other browsers. Also, it throws an error if used in Web pages.


inputElement.mozSetFileNameArray(aFileNames, aLength);


Is the array of file names to apply to the element.
Is the number of file names in the array.


var fileArray = {"/foo/bar.txt", "/foo/foosball.txt"};

inputElement.mozSetFileNameArray(fileArray, fileArray.length);

Browser compatibility

ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
mozSetFileNameArrayChrome No support NoEdge No support NoFirefox Full support 3.6IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android No support No


Full support
Full support
No support
No support
Compatibility unknown
Compatibility unknown

See also