Windows 10 operating system. Not sure of the version of Firefox since I can't even launch it now, but it was current until yesterday. Yesterday Firefox said it wanted to update. That original download attempt took a very long time (>20 min). I did interrupt that attempt. Later, I tried again using Internet Explorer because now the shortcuts do not work. Same result of download taking over 10 minutes with no sign of completion, which I again interrupted. I tried to uninstall Firefox today, in case that was causing the problem. That was unsuccessful. Today I was successful in downloading Firefox via Internet Explorer. But during the installation process, the green status bar gets to probably 98% and then there is an error message saying that the installation was "interrupted." To my knowledge, I was not doing anything to interrupt this process. Is this a Firefox issue or something else? I'm not a techie, so please respond accordingly.  :-) Thank you.