The Firefox Accounts confirmation or verification code email can take a few minutes to get to your inbox. If you haven't received the email after a reasonable time period: Try to access your email from the webmail client, not your email software. Spam filters might also prevent it from reaching the right mail folder. If you've already waited a few minutes and refreshed your inbox, check your junk mail or spam folder to see if your confirmation email ended up there. If you still don't receive the Firefox Accounts email after trying the preceding steps, a strong spam filter might have prevented it from reaching you at all. Try adding accounts@firefox.com to your list of allowed senders to keep your email provider from blocking the email. You can then re-enter the information on the Firefox Account signup page, or click the Need another code? '''Resend''' link on the page to enter a 6-digit verification code, to receive another email. See: I'm having problems confirming my Firefox Account https://support.mozilla.org/en-US/kb/im-having-problems-confirming-my-firefox-account