A method, non-transitory computer readable medium and apparatus for controlling access of a custom browser function are disclosed. For example, the method includes a processor that sends a request to a third party website, receives a hypertext markup language code and a browser script, renders the hypertext markup language code, detects that the browser script is trying to access a custom browser function, compares one or more parameters associated with the custom browser function to an access control list to control an access of the custom browser function, and executes the custom browser function when a match of the one or more parameters is found in the access control list.