Secure browser

A secure browsing manager intercepts load calls, and determines whether intercepted load calls are attempting to load code into the browser. When the secure browsing manager detects that a load call is attempting to load code into the browser, it determines whether that code is trusted. The secure browsing manager processes the attempt to load the code into the browser according to whether or not the code is trusted. If the secure browsing manager determines that the code is trusted, it allows the code to be loaded into the browser, thereby securely allowing the benefits of loaded code. If the secure browsing manager determines that the code is not trusted, it blocks the attempt to load the code into the browser, or alternatively takes other actions, such as allowing the code to be loaded into the browser, but blocking certain user initiated activity.