Still problems with Firefox despite Refresh

Hi Had to reopen this as my problem is not solved. After the latest Firefox update I have to open Firefox in safe mode, close it down, reopen it normally and then it will work. If I do not do this then I am unable to type in the search bar. All I get is a box which opens and invites me to Restore Move Size Maximise or Close. When I previously asked this question I was advised to use Refresh, which I did, but it has made no difference except that before I was getting éééééé in the search bar no matter what I typed and now I am just getting this box which comes up. I'd be really grateful for any other suggestions, thanks.