Paperpile features no longer available on opening pdfs

I have been using Paperpile for a while and enjoying its features. However, today, when I press “view pdf” on a paper in my paperpile, it’s just chromes normal pdf viewer.

There is a similar topic on the forum in the past, however, the chrome browser has changed since it was answered. I went to the equivalent of chrome plugins (more tools -> extensions) and it does not list a chrome default pdf viewer to turn on or off. I’m unsure why this is not working.

Please go to the settings menu in the upper right and then to the “Browser Integration” tab. Set your PDF Viewer to “Viewer with annotations (beta)”. You should see a beta opt-in prompt when you next open a PDF.