Yeah,the mounting bracket is glued to the glass,but the mirror mounting slides over it.Looked for an allen bolt or maybe you push the bit of plastic at the bottom in or something.Like you said,don't want to crack the glass.
i knocked mine down with my head when cleaning the inside of my car. just glued it on with superglue (there were already cracks in it, so who cares?). it fell of 2 months later. then i went to my ford dealer and he gave me the sticky pad for free. :L
I don't want to remove the mounting that is stuck to the glass,just the mirror itself,which in this case slides over the mounting.Cannot see how it comes off.Must be either an allen bolt or some kind of clip to press.