What do you have in the post right now?

[silverlifter]

Works fine for me on Firefox

Yep; unless in Settings you opt for more strict privacy protections (which they warn "may cause some sites or content to break.").

 

[alfredus]

Works great for me on Firefox mobile and desktop...stunning brush @LesC

 

[silverlifter]

From @Lodrino - an absolute gentleman! I'm really looking forward to these.