http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/faq/configuration.html
It may, however, make all cookies temporary, so that your browser
will forget your login credentials in between browser sessions. If you would like not to have to log in manually
each time you access those websites, simply turn off all cookie handling for them in the user.action file.