Firefox - "Your request has been blocked due to a network policy." [iOS]

I am able to sign in on old.reddit.com, and access everything on new Reddit, but once I sign out, I get that message again.

https://preview.redd.it/d3o41256ynud1.png?width=1882&format=png&auto=webp&s=c42ce0e91678118603ca61faf7d96aa4281ad600

This only occurs on Firefox, and started like maybe 10 minutes ago (essentially around the time I posted this).
I've restarted, and cleared all browser data, etc.
I can still access on Safari without having to sign in.
I don't use a VPN or anything like that.
I don't have any Firefox extensions.

I'm fairly certain I haven't committed any egregious offense (especially when signed out?).