Images generated seem to be steriotype Irish - red heads in green.

It's not a bug. It's a 'feature'. 🙂

Firefly is "location aware" and will often introduce rather biased results unless additional modifiers are added to your prompt.

Obviously anyone living in Ireland has red hair and wears green clothes, right laddy? 😉

I am located in Canada. Here is what your prompt generates:

Observations:

- no-one aged beyond 35 or so is employed in the typical office in Vancouver! Only younger people work!

- white males almost always wear glasses and invaribly always sport beards in the Vancouver BC area

- Everyone smiles all the time! Perfect looking veneers too!

- No-one talks during office communications. Just smiles and laughs!

- people from various ethnic backgrounds seem to avoid mingling with people from other ethnic backgrounds. This really is very very biased. And just plain wrong in my opinion.

- offices never change. Weather never changes. Often the same people reappear. Perspective/viewpoint is more or less the same.

I understand that Stable Diffusion is often biased by its training, but introducing location-based bias seems like a bad idea to me.