Did you try it? At least on FireFox, it pulls up post 58 of this thread. I did manage to find the cited message, but the links you posted are indeed broken.
Yes, I did try it. I get there every time and I’m using Firefox as well. All I did was copy and paste page source. I checked it both in preview mode and after I posted it. It works fine.
Check your tabs in Firefox, sometimes when I think they have taken me back to my original page, I find I am just in the wrong tab.