Enhancement of web browser extension analysis capabilities, such as security application analysis, is realized by encapsulating the extension with a wrapper function that defines entry and exits points within the source code of the extension. By wrapping the web browser extension in a function that defines entry and exit points, the present invention enables the use of commercial SAST tools/engines and any other application which desires to analyze the web browser extension and/or extract data therefrom. The web browser extension is programmatically analyzed to identify the entry and exit points and, in response, the wrapper function is generated that defines the entry and exits points and the web browser extension is encapsulated with the wrapper function.