Links open but do not show anywhere when i shut computer down i get "Do you want to save your tabs and windows for the next time it starts"

When i open say Sky sports and click on link to Score centre nothing seems to happen it does not show anywhere in browser or on desktop. When i close firefox then shut computer down window comes up asking " Do you want to save your tabs and windows for the next time it starts" save & Quit: Quit: Cancel. Also End program firefox.exe This program is not responding