Besides Firefox, I don't think many of the browsers are user-agents anymore, but more like corporate-agents, as they don't seem to act in the interest of the software user anymore.
If you’re willing to consider the sequels part of the canon, Smith’s copying/cloning technique does kind of look like OpenAI’s approach to intellectual property.
https://dl.acm.org/doi/10.5555/648203.749270
https://en.wikipedia.org/wiki/Software_agent
Besides Firefox, I don't think many of the browsers are user-agents anymore, but more like corporate-agents, as they don't seem to act in the interest of the software user anymore.
https://dlnext.acm.org/doi/proceedings/10.1145/267658
Alan Bradley: Some programs will be thinking soon.
Gibbs: Won't that be grand? Computers and the programs will start thinking, and the people will stop!