I have FireFox 4.0 it comes up and says that it needs to be updated, when I click the (NEXT) button & it does the contacting server/downloading the update. I click the apply update button & the fire fox window closes & the status bar come up with the installing the updates & will restart firefox in a moment. However once the window restarts, the notice that firefox needs to be updated come back. When I click the (next) button to download the update, the cycle begins. I clicked the HELP link at the top of the window & then the ABOUT FIREFOX to see if there might be multiple updates, but it's the same one each time "modzilla firefox yahoo edition yahoo 1.8" I love fire fox & until now have never had a problem when it comes to installing the updates.