I presume you mean "Internet ExploreR"?

More information would help. Such as the software you're using to drive the cameras and the kind of security in place.

Also, did you try any other versions of Firefox to view them, prior to using v15?

It is a Web Application Manager in windows internet explore . I access it by typing in http://192.168.0.11/. When I try it with Firefox it is a blank page,nothing happens.I have a Qsee PVR system.

Consumer video surveillance software (supplied with the hardware) has been using an old way of doing things, from when IE was the primary web browser for 90%+ of US PC users. Over the last 3 or 4 years the manufacturers of those products have been changing over to more universal software which isn't tied to one specific brand web browser.

Without more specific information about the devices and software you are dealing with it's hard to provide specific answers. (Like DVR model number and exact software version number being used.) The "web interface" may be made to work only with (IE) Internet Explorer, if it uses ActiveX controls.

This page brings up a few things with that brand product - http://amal.net/?p=951 - but maybe not the exact model you have. Read the user comments at the bottom of that article to see problems that other's have had.

1. Firefox doesn't directly support H.264 compression, you would need to install a Codec.

2. It probably uses ActiveX, which makes it basically IE-only. No Firefox, Chrome, Opera, or Safari,
"The DVR does have a web interface, but it is simply is a launchpad for an ActiveX component. This limits you to accessing the DVR via a Windows PC running Internet Explorer. Furthermore, the ActiveX component is highly unstable. It crashes on all but a couple of my several PCs ."

Thanks for the help,it does use ActiveX. I guess that is my problem , when I first ran the ip address in IE it had to install ActiveX.

Thanks again for the help, I guess I'm stuck with IE