Opens both archived pages in a new tab, and works. The only other thing I want it to do for the Archive.org option is to go to "/web/*/[URL]" to view Calendar of archived links, instead of "/web/[URL]" which just hops straight in to the latest web-page.

The Captcha thing is a YOU problem, this extension only points to a URL. Only the Archive website is giving you Captchas, 'Open in the Archive' can't effect the web traffic. This has worked great for the past two years.