show on new tab as well we focus on address bar and search bar.
in userChrome.css add,
/*bookmarks toolbar on new tabs only */
#PersonalToolbar{
--uc-bm-height: 20px; /* Might need to adjust if the toolbar has other buttons */
--uc-bm-padding: 3px; /* Vertical padding to be applied to bookmarks */
}
:root[uidensity="compact"] #PersonalToolbar{ --uc-bm-padding: 1px }
:root[uidensity="touch"] #PersonalToolbar{ --uc-bm-padding: 6px }
#PersonalToolbar:not([customizing]){
margin-bottom: calc(2px - var(--uc-bm-height) - 2 * var(--uc-bm-padding));
transform: rotateX(90deg);
transform-origin: top;
transition: transform 135ms linear 600ms !important;
z-index: 1;
}
#PlacesToolbarItems > .bookmark-item{ padding-block: var(--uc-bm-padding) !important; }
/* SELECT BOOKMARKS TOOLBAR BEHAVIOR */
/* Comment out or delete either one of these to disable that behavior */
/* Show when urlbar is focused */
#nav-bar:focus-within + #PersonalToolbar{
transition-delay: 100ms !important;
transform: rotateX(0);
}
update*
in firefox 79, you need to enable loading of userChrome.css
