Not receiving 6-digit code for login verification

Hello, I'd like to login into my account on a new laptop, so I can sync my passwords and bookmarks with this new device. When I try to log in on this laptop and enter my password, Firefox then prompts me to enter a 6-digit code sent via e-mail to verify the login. I've tried this numerous times but I never seem to receive this e-mail. I've tried requesting this code across multiple days and at different times of the day, but nothing helps. I've also added accounts@firefox.com to my contacts and checked the spam folder. I presume there is something wrong with my account, since my e-mailaccount receives e-mails from others just fine. Can someone help me with this issue? Thanks.