socket.io.js.diff

diff --git a/socket.io.js b/socket.io.js
index dfd777a..6185082 100644
--- a/socket.io.js
+++ b/socket.io.js
@@ -329,6 +329,12 @@ if (typeof window != 'undefined') this.io.setPath('/socket.io/');
 	XHR.prototype._request = function(url, method, multipart){
 		var req = request(this.base._isXDomain());
 		if (multipart) req.multipart = true;
+		
+		// JRL: adding this to enable cross-browser XHR in FF
+		if(window.Components && window.netscape && window.netscape.security && document.location.protocol.indexOf("http") == -1) {
+			window.netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
+		}
+		
 		req.open(method || 'GET', this._prepareUrl() + (url ? '/' + url : ''));
 		if (method == 'POST' && 'setRequestHeader' in req){
 			req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded; charset=utf-8');