Firefox 87.0 (64-Bit) together with ublock origin here.
I see the featured deals just fine. Did not have any issues during sale either. And ya see my login status just normal.

Darn..

Thank you for the info though. I have no idea what could cause this. No-Script shows up clear and I have tried to disable uBlock origin and the scripts as well, but nothing helps.

I am currently updating windows, maybe that will improve things...

I solved the problem. It turned out that I had a small addon called Anti-Adblock Blocker installed, which caused this. Disabling that addon did the trick. Thanks a lot patric for reminding me to check on my Addons. Sometimes we install something and then just forget about it.

Glad you solved it and remember: the fewer add-ons, the better when it comes to preventing fingerprinting and tracking. I also highly recommend having a look at some privacy-related settings in the options and in about:config. There are plenty of articles on the Internet regarding that. Better safe than sorry in this day and age. uBlock for instance is a powerful tool that can block certain domains globally or locally. As an example, Facebook and Twitter tracking are enabled by default on many websites, GOG included. From within uBlock one can set custom rules to prevent that.

And speaking of privacy/security:
https://www.privateproxyguide.com/how-to-disable-webrtc/