The extension was previously taken down from the Chrome store, but it is now back online.
To reduce the likelihood of this happening again, the extension is unlisted and available to Patrons of any tier.
As of 2019-09-30, the extension has been taken down from the Chrome Web Store in fear of copyright violation.
The original takedown statement can be read here.
Installing the extension is still possible but convoluted.
We recommend using Firefox to avoid the extra steps.
Beware that auto-updates will not be available while using this method.