Google has an "AI Overview" whenever you search for something, and this is probably what Mozilla wants to enable. I think your average person will find it useful.
Whether it's a good thing or not is hard to say. It's great when it's a simple question and not critical ("what is a hybrid golf club?") -- much faster than getting links and scanning the pages of wherever you are linked to. It's not great in that it 1) reduces traffic to websites producing the content that the LLMs depend on; 2) LLM hallucinates; 3) the information is actually critical and you should be researching it more in depth.
Whether it's a good thing or not is hard to say. It's great when it's a simple question and not critical ("what is a hybrid golf club?") -- much faster than getting links and scanning the pages of wherever you are linked to. It's not great in that it 1) reduces traffic to websites producing the content that the LLMs depend on; 2) LLM hallucinates; 3) the information is actually critical and you should be researching it more in depth.