How do I install a "Printe"r-s" icon on the Mozilla Firefox toolbar?

About five years ago I purchased an HP laptop running Windows 7. It's become outdated, slow, and unreliable. Last week, I purchased and downloaded Windows 8, and downloaded Mozilla Firefox for free as well. Wow! Just like a new, much better computer. One problem. I can print from my email site without any trouble. However, I cannot print from a web page because there is no printer icon on my Mozilla Firefox toolbar, as there was on my Windows 7 toolbar. I can transfer any of 158 apps to my new toolbar, but those I don't need yet. How can I transfer a working "Printer-s" icon onto my Firefox toolbar? Thank you.

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