Pale Moon forum

Not sure what is causing this, but using Microsoft's Print to PDF printer has stopped working since fairly recently. It works in Edge. I've removed Firefox but I think it failed there, too. I tried setting it as default and also disabling/re-enabling it ("Turn Windows features on or off").

Windows 10 x64, Pale Moon 28.0.0b5 x64 (2018-08-01)

I suggest using a virtual printer instead of an extension, e.g. PrimoPDF. That way the browser can treat it like any other printer out there.
Combine that with e.g. FireShot to get "as-displayed" print layouts, and you should have all the options you need.

This is a virtual printer (Microsoft's in-built for Windows 10), not an extension. It could be a Windows 1803 issue though.

Ah okay I misunderstood.
Could you create a GitHub issue for this with the exact error thrown in the console? It seems there's a problem getting the printer settings and that might be fixable/worked-around on the browser side.