( Eg: AD BLOCK, Mcafee site/web adviser, internet security toolbar etc )Ģ- Also disable the Firewall of your machine see, OS X: About the application firewall - Apple Supportģ- Disable Firewall of the Internet security program installed on computer.Ĥ- Since you have a Mac machine then please check and confirm that your Mac gate keeper is set to allow installs from anywhere:
1- Please check if you have any browser security extensions installed, please disable them.