bonjour , j'ai speed dial qui apparait dans mes onglets d'accés rapide ou nouvel onglets lorsque je lance une recherche , une page web , je souhaite revenir comme avant , pourquoi est 'il impossible de supprimé speed dial , ?

hello, I have a problem I have speed dial which appears for a few seconds in my tabs each time I launch a search, a site, and speed dial and marked in the tab as if I were going to the speed dials page but in the end it's still the requested page that opens, but I want to delete speed dials, how to do it, it's been like that for several days, I'm French, a lot of trouble with English sorry. Thank you