One-click Wayback от Tom

One-click Wayback displays a toolbar button that searches the <a href="https://en.wikipedia.org/wiki/Wayback_Machine">Wayback Machine</a> for your current page.

This is useful if the page you’re browsing no longer exists, and you want to quickly check whether the Wayback Machine has a copy.

Features
<ul>
<li>Just a button.</li>
<li>It’s 5 lines of code.</li>
<li>No options.</li>
<li>No special permissions.</li>
</ul>