Loads all installed and supported browsers into BrowserCookies.browsers
        
        Loops through all classes that subclass BrowserCookies and checks the installed
        attribute. If the browser is installed, it's instance is loaded into
        BrowserCookies.browsers in the format of browsers[browser.name] = browser

def loadBrowsers():
        """ Loads all installed and supported browsers into BrowserCookies.browsers
        
        Loops through all classes that subclass BrowserCookies and checks the installed
        attribute. If the browser is installed, it's instance is loaded into
        BrowserCookies.browsers in the format of browsers[browser.name] = browser
        """
        for browser in BrowserCookies.__subclasses__():
            if browser.installed:
                BrowserCookies.browsers[browser.name] = browser