Kingdom Extension is a malicious adware infection developed by the cyber criminals to spread malicious ads on the web browsers. This adware infection loads without any manual involvement together with no cost program that you download either from any malicious resource or from any unidentified site or torrent. This adware will begin automatically and always shows content from the resource of commercials it is advertising. Therefore, it is recommended that remove Kingdom Extension as early as possible.
Uninstall Kingdom Extension: Get Rid Of it