Is it safe to use the supplied Firefox ESR browser?

Hello. New user here. I want to participate in a political discussion forum of a news website. This forum is below a regular news article. However, when I use the Tor Browser this comment function does not work. In the supplied Firefox ESR on the workstation is does work. My question is, is it safe to use the Firefox browser to discuss in this forum?

No.

Reasons:
Tor Browser Essentials