Problem solved? I've been having problems with the toolbar on the top. Several icons don't show up. The notifications tend to go away for no reason. I was running Mozilla (42.XX) or whatever the latest current stable version is. It worked fine at first, but started to act up. I finally installed Chromium. Now it works fine! A few said they have been having problems as well. I'd recommend trying a different browser. Same computer, same os, just a different browser.