hello Lisilis, this problem is usually caused by the ghostery addon - you could try to disable it... https://getsatisfaction.com/ghostery/topics/problem-with-firefox-32-firefox-option-is-not-displayed-when-ghostery-is-active-in-firefox-32 another workaround would be to switch on the new firefox preferences interface which will place the preferences menu within a tab: enter '''about:config''' into the firefox address bar (confirm the info message in case it shows up) & search for the preference named '''browser.preferences.inContent'''. double-click it and change its value to '''true'''.