https://chrome.google.com/webstore/detail/wayback-machine/fpnmgdkabkmnadcjpehmlllkndpkmiak
https://addons.mozilla.org/en-CA/firefox/addon/wayback-machine_new/
It will also detect when a webpage you are trying to visit is dead and will offer to replay an archived version
The I’ll definitely be doing this. Happy to contribute to the archive, especially because it came in clutch during the other site’s blackout. Digital preservation is not supported enough