Is your FF page fully loaded? As sometimes when I'm having the problems(with the editor) such as today when manually trying to type Https I got a little box on the left hand side saying Quick find and For the life of me could not type Https(unlike now as FF is fully loaded/Or the page has fully loaded) I know this because the little spinning thing on the top right IS NOT spinning and down the bottom of the right hand side above the clock there is NO blank box.
Do I make sense?