Works perfectly BUT for users of uBlock Origin there's an issue which is solved by
adding to uBlock₀ — Dashboard / My rules the following rule :
* printfriendly.com * noop
Otherwise reported "missing icon" and overall PDF download won't work.

I can't see where it is added.

It did not work in Firefox 95.02 when I first installed it, from PF & PDF website. Could not get the icon to appear in the Menu Bar even after trying what Support suggested.
Then I decided to uninstall Firefox completely from Windows. Was asked if I wanted to try a "Refresh" first. Did that, and all extensions were eliminated. Then downloaded PF & PDF extension thru Firefox Add-Ons, and IT WORKED!. The icon came up on the Menu Bar just as it should.
Apparently there is a difference in where you install the PF & PDF extension from. I wonder why? But since it now works, I am very happy.
Thanks, Support Guy!

A must have extension for dealing with articles and reports you need for later. Save as a pdf and send it anywhere. Eliminate the clutter of sites that are trying to force you to to read their seondary content and ads.

It does what it's supposed to do with no fuss. It gives the users a preview and the choice to delete passages that may be unwanted. Does not include ads in the final pdf. The only weak point for me is that it divides the context of the webpages into pages instead of a one-page document, without the option to choose which of the two works best for you.

great ap

Excellent

Was a good print addon. Now security blocked by Firefox. Error "has been blocked for your protection". Hope it can be repaired.