How can I dispatch Firefox or Google Chrome with Python?

How can I do this with Firefox or Google Chrome?

ie = win32com.client.Dispatch('InternetExplorer.Application')
ie.visible = 1
ie.navigate('http://google.com')

Is there a way to do it?

ps: I need to use the ReadyState with it... for example while (ie.ReadyState != 4):, or in other words, I need some command that wait unt开发者_开发技巧il the page loads completely until do the next command, that's why I need the dispatch, that currently work very good with IE

Firefox does not expose a COM object; this is not possible. (AFAIK)

You can use the webbrowser module to open a URL in the user's default browser.

Have a look at the webbrowser module in the Python standard library.