Create a Pdf from an Internet page on Firefox

Hi,

An happy and sucessfull new year to everybody.

I have suscribed for Acrobat pro since october 2020 and it's work perfectly except that there is no Acrobat extension to activate on my Firefox to translate easely and quickly an Internet page to a Pdf.

I can print a page as Pdf but i cannot find the extension to valid as explained.

Somebody could help me ?

Thank you.

Patrick