not able to change the homepage of safari
I'm not able to change the homepage of safari browser. it is greyed out as shown. I have also checked in the system preferences but no separate profile is added. I have checked with Malwarebytes about any adware added in Mac, but it is showing no threats detected. The url in the homepage placeholder is some kind of adware, i think. Please help.
MacBook Air 13″, macOS 10.15