I have more than one tabs open and one of the tabs is a pdf document. When I switch to a different tab and try and scroll in the new window it won't register in the tab I have selected and only moves the scroll bar in the pdf document that I do not have selected. How do I fix this? It is quite annoying! If I have multiple tabs open and one of the taps has some sort of adobe file opened and I switch to a different tab the scrolling feature in Firefox doesn't seem to be working in the new tab that has been selected. I was wondering if I am only having this problem or if others are experiencing the same sort of glitch.