Launching firefox with your own profile

First you need to copy the profile windmill creates, this has all the options set that windmill needs to run reliably.

From the windmill shell, launch firefox, then run the following;

windmill.settings['MOZILLA_PROFILE_PATH']

While windmill and firefox are still up, copy this profile to a new location.

Quit windmill.

Now you need to edit your local windmill prefs.py, on Mac this should be in ~/Library/Application Support/windmill/prefs.py

MOZILLA_CREATE_NEW_PROFILE = False
MOZILLA_PROFILE_PATH = '~/place/you/put/your/profile'

From now one windmill will always launch that profile, and any plugins you install will be available the next time around.