Unable to access existing AMO account and add-on ownership

Greetings,

I need help recovering access to the AMO account that owns my Firefox add-on, “UltraWide Video 21:9.”

The email address associated with the add-on is my main email address:

hp321helder.pt@gmail.com

However, when I sign in to the Add-ons Developer Hub using this same email address, I am being treated as if I have created a brand-new account. The Developer Hub shows that this account was created on September 2, 2026.

The existing add-on does not appear in this account.

The public listing is still available here:

It currently shows the developer as “Firefox user 12885222.”

I have already tried signing in with any other email addresses I own but unfortunately no success.

Also I tried to contact Mozilla Support but unfortunately they were not able to help me on this matter and I was told to get in touch with the Add-ons team.

According to Mozilla’s documentation, an existing Add-ons account should retain access to its add-ons after being migrated to a Mozilla Account when the same email address is used. In my case, that does not appear to have happened.

Hopefully i can regain access to my legacy Developer Hub account or if not possible at least provide ownership to my current Mozilla Account since i’m the owner of the Add-on mentioned.

Appreciate any support and help on this matter, thank you.

Hi there and thanks for reaching out.

This is indeed unexpected and we have launched an internal investigation to figure out what happened there and how to fix it.

I will let you know the moment I have an update from the team.

Thank you

-Christos

Hi Christos,

Thank you very much for looking into this matter and for launching an internal investigation.

I really appreciate it. I’ll kindly wait for your update from the team.

Thank you again for your help!

Best regards,
Helder Filipe