[pogue]

Firefox does have that and you can choose from different models or even a local one (last time I checked)!

https://support.mozilla.org/en-US/kb/ai-chatbot

[m4r71n]

Not quite the same thing. Google's features seem to give the model the ability to control the browser, not just act upon the text within a given web page.

[glenstein]

Is it integrated into the browser at all or is it basically a browser tab?