I worked recently on merging my collective.anonymousbrowser back to zc.testbrowser.

It's definitivly seems to run fine with python >= 2.5.

Points of the merge were large:

• Integrate the proxy balancing capability
• Integrate the user agent faking capability
  
• Add tests where it was missing
• Improve the "real" class
  
• Make the real class mozrunner powered, that's free you to configure a firefox, and just let the code configure a default profile for you.
• Integrate the existing "screenshot" javascript function as a class method. Thats enables you to do browser.screenshot() and that makes a screenshot of the running firefox.
  

But, something i hadn't tested, ..., was the python 2.4 support. Both zc.testbrowser and mozrunner have problems with it...

I will try to make the next commits fix that if possible.

As it's not yet officially released., you can try the code there:

   svn://svn.zope.org/repos/main/zc.testbrowser/branches/fastreal_screenshots_mozrunner_proxys