Wow and a 3rd to change my avatar?

Different *.mozilla.org sites use different software and or were created at different times etc.

The only mozilla.org sites that I can think of that uses same account from one site on another is addons.mozilla.org and the support forum of a.m.o at forums.mozilla.org

edit: fixed a typo in second link since thread was bumped.

Some Mozilla sites also allow a login via Persona.

• http://www.mozilla.org/en-US/persona/
• https://support.mozilla.org/kb/what-is-persona-and-how-does-it-work

Seriously? Like, for real?