I'm having trouble logging into sites with Firefox. One example would be [https://preply.com/en/login?source_page=home&source_element=header preply.com]. I know my credentials are correct because I can log in with Chrome. I do have UBlock Origin installed, but I configured preply.com as a trusted site, so uBlock is disabled for it. One interesting thing is that when I try to log in on Firefox, I see a message that sort of hints that the filled out fields (email and password) were considered unfilled in (i.e. "This field is required"). Almost as if the email and password were ignored. It happens with other sites, but this is as good a site to diagnose as any. Thank you!