Do you mean that the link isn't working if you paste or type it in the location bar or is the Home button not working?

Or do you mean what opens if you start Firefox?

I upgraded my Firefox and now when I open, either from a shortcut on my desk top or the Firefox icon all I get is a blank page with no address but about:blank. I can then open a page such as my mail or home page from a bookmark, nothing from the desktop will open in any thing other than the blank page. Also my right click options only work once and a while. Things like saving a photo or going back just don't work. All sorts of little glitches, I find them very frustrating and am considering going back to IE even though I don't like it much. All my saved pass words are gone too.