How can i stop google pages from popping up

Hi Sabrina, is that a new tab which keeps opening, or a new (separate) window? Does it stop when you quit out of Firefox, or does Firefox come back to life? It looks like either an open page or an external program may be trying to launch a Google Docs document. But why... and which one... I don't know how to figure that out remotely. If this is a company computer, your IT department might help investigate.