You used to be able to do that, but it was fixed in 2010: https://blog.mozilla.org/security/2010/03/31/plugging-the-css-history-leak/ https://blog.mozilla.org/s

You used to be able to do that, but it was fixed in 2010: https://blog.mozilla.org/security/2010/03/31/plugging-the-css-history-leak/ https://blog.mozilla.org/security/2010/03/31/plugging-the-cs...