This is happening to me, too with the Firefox beta in the firefox-next ppa. That doesn't use the extension, it uses a patch to Firefox. On first click, menus are empty. After mousing over a menu item and clicking off, the submenu is populated.
This is happening to me, too with the Firefox beta in the firefox-next ppa. That doesn't use the extension, it uses a patch to Firefox. On first click, menus are empty. After mousing over a menu item and clicking off, the submenu is populated.