Click the link called Dashboard top right of this forum, then click the link to Edit My Profile.

Thanks, but the problem is not with my profile, which I checked before posting the original question and again just now. My email address is there as it should be and so is my display name. The problem is that my display name does not display. As you see, my email address displays instead.

Do you have "Make my email public" checkmarked?

Nope.

I added the "display name" TESTING but except for in my profile, the forums shows my username.

You used your email address as the user name when you registered. Only a forum Administrator can change the user name. You can post a request (new thread) on the Contributors forum to ask for such a change to remove the trailing @xxxxx from the user name.

• https://support.mozilla.com/en-US/forums/contributors

Thanks! I've asked for the change. I'll post about the outcome.

It's so broken! What the hell is the use of a display name then? :(