I am drupal 7 dev. Just upgraded Firefox to Quantum 57. LP not working on user login on just one of my sites https://pagopago.com
. The problem is in standard view only. Works fine in Private Browsing. I have tried all suggested remedies. LP works fine for this site in all other browsers. When I go to the user login page I get the standard login dialog with the LP icons at the right of each box. Click on the username box gets a dropdown (this is standard) offering a few login options. Selecting any of these options results in nothing happening. The login form is not filled in.