Have had a lot of issues lately with Firefox. Running windows 8 and FF27. Been using this setup for several years with no issues. The program response had slowed down greatly recently. I tried closing and restarting the program, finally I realized that FF was running in background and did not start up as an app/program. Clicking on the icon gave the usual indication that it was starting up but the screen never appeared. Checking the task manager I found the program running in the background, more than once had I tried to start it more than once. Uninstalled and reinstalled FF27. Now the background issue is gone, it starts up as an app again in the foreground. Pinned shortcut to task bar. The shortcut starts the program up with no issues and at the same time creates a 2nd icon on the task bar next to the shortcut. Starting FF again adds another icon to the one on the right (icons are slightly misaligned so you know two programs are open). I have only ever had one icon on the taskbar with the program running. Multiple icons that overlap indicating more than one window is open I understand, that is no problem. But why is a second icon added when I start the first window? Deleting the shortcut icon closes down the program.