Can't print a pdf from the print option in Ultimate Guitar but chrome will

I use a program called Ultimate Guitar Tabs. It is fantastic for finding chord sheets for playing guitar songs and being able to download them as a PDF file with the lyrics and chords shown. Unfortunately I have tried doing this simple press of a button save as PDF in Firefox and all I get is a colored screen either blue purple red etc and no PDF. I have tried the exact same thing in Google Chrome and it does it flawlessly. I don't want to use Google if I don't have to, but at this stage I have to and would be pleased if Firefox could address this problem and make life easy again. I updated Firefox today and everything seems ok except for this PDF problem. I imagine their will be other people affected by this and it may not seem like a big deal but Ultimate Guitar Tabs is the industry standard for teaching people how to play songs on guitar and is used by most muso's world wide to teach students how to play specific songs. Please note It affects both Linux Mint (My main system) and windows 11 (My Laptop). If Google chrome can do it on both Linux & Windows 11 I am sure you should be able to address this problem. Please advise asap if you need more info etc. Thanks and regards, From Australia, Steve Paul