How to uninstall McAfee SiteAdvisor Addon in Firefox on Mac

Recently I installed, for some testing issues, the add-on by McAffe, called SiteAdvisor. This add-on supposed to be a help for someone who wants to find out if a site he's visiting is safe. It is running in the background and check a site for some parameters such as downloadable files, pop-ups, advertising stuff, malware etc.

After some test I wanted to uninstall it and found out that the uninstalling button in the menu Add-ons is enabled:

After some recherché I found the application in my Applications folder. Thus to uninstall this add-on please follow these steps:

1. Close your Firefox Browser either by using the hot key cmd+Q or go to Firefox and click on "Quit Firefox" or "Firefox beenden" (for German)
2. Go to /Applications/SiteAdvisor . Double click on Uninstall.app
3. Follow the steps to uninstall the app, enter your admin password
4. Open your Firefox and make sure the addon is now uninstalled by clicking on Extras --> Add-ons

Ready!