add:  expl.value = text; 
context:     initExplanation: function() {        var expl = this.dialogElement( "explanation" );        if ( this.mLauncher.MIMEInfo.preferredAction == Components.interfaces.nsIMIMEInfo.saveToDisk ) {            expl.value = this.getString( "explanation.saveToDisk" );        } else {            // Default is to "open with system default."            var appDesc = this.getString( "explanation.defaultApp" );            if ( this.mLauncher.MIMEInfo.preferredAction != Components.interfaces.nsIMIMEInfo.useSystemDefault ) {                // If opening using the app, we prefer to use the app description.                appDesc = this.mLauncher.MIMEInfo.applicationDescription;                if ( appDesc != "" ) {                    // Use application description.                    expl.value= this.replaceInsert( this.getString( "explanation.openUsing" ), 1, appDesc );                } else {                    // If no description, use the app executable name.                    var app = this.mLauncher.MIMEInfo.preferredApplicationHandler;                    if ( app ) {                        // Use application path.                        expl.value = this.replaceInsert( this.getString( "explanation.openUsing" ), 1, app.unicodePath );                    }                }            }        }    },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/0c5ce30bd42acf161d191e0c4ec2c6a5a5601849/nsHelperAppDlg.js/buggy/embedding/components/ui/helperAppDlg/nsHelperAppDlg.js