I just updated to xenforo 1.5.2 after that i updated black reponsive themes also to match new version of xenforo. But looks like xenforo 1.5.2 have a bug when using firefox. Styles cant update when when selecting styles in bottom of forum. I think its a xenforo problem, and not the actuall style that does it. fire fox it wont update , but Chrome works. I tried deleting cookies deleting cache in firefox , noting helps.