I haven't paid close attention, but as far as I can tell, Mozilla has mostly invested in local AI for tasks such as translation, summarization, and organization. As long as that's the case, I don't see any particular safety or privacy risks; if it works without an Internet connection, it's probably OK.
Summarization is using a chosen cloud-based AI provider.
Are you sure? I see a huge spike in CPU when I long-click on a link to see the preview and summary. This is the newest summarization feature, not the older one with the chatbot on the side.
Ah, didn't know they moved to local models. My comment was about the old chatbot-based feature.