Safari won't force quit, keeps Re-opening

Sorry - I was responding to my problem with the fan constantly on.

Safari auto-restarting solved by MalwareBytes removing 9 malware, suspicious items.

For the Safari not quitting, the advice above to install Malwarebyte removed a couple of malware and that worked. But, I still had the fan constantly on problem. Apple Genius reinstalled Mojave even though the problem existed under High Sierra. But, I was impressed. They ran several hours long stress tests to test everything and it was good to know there were no hardware issues. Reinstall of Mojave is the only action they did and didn’t require any resetting of my preferences.

However, a new problem occurred where my iMac would not wake up after sleep requiring me to manual shut down and power on. Another forum helper suggested a startup in safe mode and run first aid. So far that worked, but only for two days. When it did wake up it took about 30 sec to wake up. Some advise it is Mojave issue.

Thanks Dominic23! This worked. Feeling invulnerable because I have a MacOS, I never thought I could be infected. Malwarebytes found 9 threats. Removed them. After following your process. Never heard about Malwarebytes, so researched its authenticity and effectiveness. Gets high ratings. Of course your Level 9 rating adds another input to reliability.

Now, if I can get the fan to stop. Thought this might be another malware or virus too. But Malwarebytes-found malware did not fix this.

Yup. Did all that already - several times, even unplugging cord from outlet. No joy. Ran Apple Diagnostics and it reported possible fan problem. Have Genius appt tomorrow (1/30/19). Will report back.

Thanks anyway.

Oh and no charge at Apple Store since no hardware was replaced. I was happy about that.