I am on Ubuntu 18.04 64 bit. I got the warning that my FF was out of date, so I clicked to download. Then I extracted it, and... nothing. What am I supposed to do now? Where is the right 'start' or 'install' file? Then I read that I should wait for Ubuntu's version. So I went to the Ubuntu software site and downloaded 65.01. That downloaded and installed itself automatically, which is what I expected. Then I saw several news blogs from the last 48 hours saying there was a bug that needed fixing immediately. I followed the information and downloaded FF 67.01. And then my archiver program said it could not open it because it was not the right archive type. I also saw something on your site about FF being self updating. That's not happening, either. Bottom line, I have a new but dangerously buggy version of FF, and apparently no way to upgrade it. Suggestions?