I have a 2007 mac desktop with OSX 10.8.5 which I am told is not supported by Mac any longer. Mac users interested in Mozilla firefox mac 10.5 8 generally download: Firefox 83.0 Free Firefox is one of the most popular web browsers on the market, providing numerous helpful features and quick speed to millions of users worldwide. Mozilla Firefox 10.0 Free DownloadĪnother issue: I don't quite get why there is an icon that looks like Firefox drive on the desktop which when clicked opens up a window with firefox icon and an apps icon? I've gone to the support page and followed the instructions for updating (after going through the hanging endless download) which suggests that I then install a fresh version of Firefox is unsuccessful.When I do that I get message that says that there is already version installed or running? Circular effort. That's fine but when I attempt to do so it hangs on the download. My laptop is set up to notify my when updates are available.