Cleans a list of links and opens every one in a new tab with a single click. Host names without a scheme get https (or http, by setting), duplicates are dropped, and anything that is not an http(s) link is reported instead of opened. Tabs open only when you press Open all, with noopener so the pages cannot reach this one; if the browser blocks pop-ups, allow them for this site and press the button again — only the blocked links are retried. The list itself is processed locally.