whaouuuh
function is working again in opera 60.0.3255.170
many thanks !

same here
when I bookmark using the little "heart" at the right of the address field, it works fine
but when I use the "add page to bookmark" in each bookmark menu or submenu, the sheet window that opens to confirm the title of the bookmark does not save, nor cancel and stays open.
very annoying.
the only way is to force-quit, of I just found that cmd-w closes the tab and the sheet window.
anyone can find a workaround for this ?