I want to disable the Tab hover preview and I follow the instructions per Mozilla Support, which are: Enter about:config in the address bar and set browser. tabs. hoverPreview. enabled = false. When I enter about.config and search for "set browser. tabs. hoverPreview. enabled = false" it comes up as ''false''. And there doesn't seem to be a need or way to save that setting, already set to false. But it still has the hover preview. How do I get rid of the preview mode? Thanks. Dennis dennis@denniswilder.com