The answer is no, there isn't an alternative since these applications(browsers) are developed to work exactly with the DVR system or device that you're using. Most of the manufacturers of these devices choose to develop their own software instead of using something else, this way they can provide support and update it as necessary. You will have to get in touch with the manufacturer, maybe he can provide a solution. I've searched on the web, and the default browser remains the only option to watch GE TruVision 30 stream/video.
