how to apply 'vertical_popup_menubar.css' in main UI and not in Library.
I'm using this stile from @MrOtherGuy : vertical_popup_menubar.css and that makes the menu items from Library disappear, I would like to that style not affect the Library window.
Bleh, I've used way too generic selectors there... I updated the style and now it only applies to #main-menubar not all menubars like before.
Another alternative could have been to use @-moz-document block to limit the style to only browser.xhtml but it's probably alright like this.
thank you so much, I will use @-moz-document for a quick solution, I will try your new code in a future cause I'm getting some issues combined with my personal code, I think jeje. Thanks for the quick answer.