All these steps are suggested by Apple Mac Safari support experts. If Apple users find any issue while using these steps, they better dial an Mac phone support number to get adequate technical assistance from reliable resources.
Known for improved developer tools, support to new HTML5 technologies, creating secure Safari Extensions, Safari 5 enhances your browsing experience. But some security and development reasons can compel users to say no to the browser. So, you better consult Safari technical assistance to disable it.