Lets play pros and cons. Discord installed via 3 ways which is better for privacy?

Firefox is significantly behind Chromium when it comes to security. The situation with Firefox ESR is even worse than that. This is especially bad in the LLM age, where hundreds of vulnerabilities are being found everywhere and anyone can have access to powerful LLMs.

While Mozilla got in bed with Anthropic to minimize the impact, this still does not change the fact that Firefox’s protections are lacking compared to Chromium’s. As for Tor Browser, anyone with a moderate or serious risk should run it in a Whonix VM, where even if the workstation is compromised, the host OS, gateway, and your IP should remain protected.

That’s exactly why I recommended Brave as a good backup option in my original comment.