Hentai Setting (firefox only):not a bug:

[AlexSage]

I see this was previously an issue(in general) that was marked as fixed. I can confirm it works fine in Chrome but for some reason it does not work for me in FireFox right now.

 

[Plykiya]

@AlexSage what part of it is broken? If you can't switch your toggle around, clear all your mangadex related cookies.

 

[AlexSage]

Oh good call. Clearing cookies fixed it.