Install this from the official GitHub repository, unless you want a buggy 3 years old release. The newer version has an improved UI, bugfixes, and more features. 5-stars for that version!

URL: githubDOTcom/internetarchive/wayback-machine-webextension



Old review (for this version): Super useful tool, but BADLY needs a bugfix. I basically have to keep this disabled until the times that I need it due to a significant bug that has been there for the 1+ year I've used it.

The issue is that sometimes the "Page not available" page is displayed for pages that are absolutely available! And the extension is very persistent--after this bug hits, the only way to view the live version of the webpage is to manually navigate to it (i.e. copy and re-paste the portion of the URL that contains the page I'm trying to visit—minus all the archive.org stuff.)

I periodically re-enable the extension to see if the problem is fixed, but no luck for the past 1+ years.