Safari
macOS High Sierra, Version 10.13.6
iMac (27-inch, Mid 2010)
Processor: 3.2 GHz Intel Core i3
Memory: 8 GB 1333 MHz DDR3
A couple of days ago, Safari just quit working. The icon is still in the dock, but when I click on it, nothing happens. When I go to the Applications folder and click on Safari, I get the message, "The application “Safari” is not open anymore." I ran the Disk Utility First Aid. I started to upgrade to a newer OS but my mac was purchased in 2010 and cannot handle Mojave.
iMac (27-inch Mid 2010), Mac OS X (10.7.5)