Having a browser on your machines is unsafe. The browser is a massively more dangerous attack surface than an Emacs-based LLM tool. What I have is a curated set of Lisp functions exposed to an LLM through a protocol I control, running in a single-user process, on my machine, behind my firewall. The attack surface is comically small by comparison.
It's a nice habit to get into if you can bring yourself to firejail your editor to $HOME/jail and keep all your r/w files in $HOME/jail/Documents and such. But only the most socially unacceptable of paranoid sysadmins do that. Ahem.
[1] FF/Chrome/javascriptless ones. The others are put in prison with no chance of parole and strict visitation policies.
Yes, there are prompt injection risks, they are legit but that's the property of the LLM, not Emacs. A browser sandbox protects you from code you never chose to run. An editor integration runs code you asked for. These are different problems requiring different mitigations.
You guys keep patronizing me on this, you think I'm some truck driver/florist/butcher by day, and I put on my amateur coder suit at night? Just so you know, I spent years working on security.cisco.com team and went through SANS training and certification. Ever occurred to you that just maybe, perhaps, potentially, theoretically, hypothetically - I'm not completely, utterly ignorant about all this shit?