I have been using IE11 because for some reason the last version of Firefox wouldn't work with the interface. I just installed the most recent version of Firefox, and camera3 has been updated through it. Thank-you
I'm now being prompted to "update" to the
previous version (1.07.04).
I have finally managed to install the update on camera1 successfully. There has been a lot of trouble with the camera disconnecting from Firefox at the end of the restart after installation but finally successful. Looking now to update camera2.
P.S. When it is working Firefox does not support the Live View ("The browser you are using may have difficulty receiving images and video" etc).