My application has an alive server idle which is set to 60 minutes that means the user will be automatically logged out if the user is inactive in 60 minutes. However, after I upgrade my browser from ESR 52 to ESR 60, the user will be logged out less than 60 minutes, range from 30 min - 60 min and it's very random. When I downgrade the browser to ESR 52, the issue will be gone. I tried to custom the timeout value in the auto:config, but it didn't resolve the issue.