Save as PDF v2.1 
This add-on allows you to easily save web pages as PDF. It adds an icon to your browser's toolbar, which you can click to save the current page as PDF. The add-on is powered by the PDFCrowd HTML to PDF online service.
Please note that for security reasons, it is not possible to create PDFs from pages that require a login, such as your webmail inbox, online banking, shopping cart contents, payment checkouts, and similar sites.
Learn more about how the add-on works at https://pdfcrowd.com/save-as-pdf-addon/
If you need support or have suggestions, please visit https://pdfcrowd.com/contact/.