Firefox in a private browser window seems to get past the registration popup for me. You have to close and reload the private window periodically because it so

Firefox in a private browser window seems to get past the registration popup for me. You have to close and reload the private window periodically because it somehow starts to fingerprint you as a user and starts showing the popup after some time. If there's a way to configure a specific site to never ever store any cookies or send them under any circumstance that might be the next thing to try. Make twitter think you're friggin curl. Unbelievable we have to do this nonsense just to read the site.