I use the OS' built-in pdf printing facility. Every single (pdf)printed page is ruined by top- and bottom text written with large font and frequently distorted of the length of the URL-line reffered to. This function can be switched off in Firefox for Windows. Please use a SMALL font for this and make the function selectable in settings. As a workaround I cut the URL from Firefox and paste it in Microsoft Edge for iPadOS which outputs a nice and clean pdf document.