Browsers warnings can be quite annoying. Specially when you want to work fast wanting to be not nagged by irritating warnings and alerts. Modern security schemes in browsers, operating systems and anti-viruses tend to just alert you or warn you about anything or everything you are going to do. When you are installing a software, I don not see any need for operating system to ask you to proceed or quit. I mean you are willingly installing that software or running a setup. Anyways, there comes an alert or warning in Firefox when page is being redirected or reloading. You can disable that alert warning by following these simple steps.