As a Firefox Support Forum contributor, I understand how frustrating it can be to experience issues with commenting on websites. It's possible that the newspaper website's commenting feature is blocked on your PC and Surface Pro due to browser settings or extensions. Let's try some troubleshooting steps to fix it. First, make sure you are using the latest version of Firefox. Then, check your browser settings and ensure that JavaScript is enabled and any ad blockers or content blockers are disabled for the missoulian.com website. You can also try clearing your browser cache and cookies. If the issue persists, try using Firefox in Safe Mode to see if any extensions are causing the problem. If you can comment on your iPhone, it's likely not an account issue, but you can also try signing in/out of your account on the PC and Surface Pro. If the problem still persists, feel free to reach out for further assistance on the support forum, where we can provide more personalized help.