Click on the + and – options to zoom in and out, and select the printer icon to print the PDF. The PDF Viewer above has standard print, zoom in and out options to select from. Then select a PDF file and click the Open button to open it as in the shot below. Click on File on the Firefox menu bar and select Open File. Now open a PDF document with the browser. Press Ctrl + Shift + A to open the add-on page below. The PDF Viewer doesn’t have a toolbar button, but you should find it listed on the Firefox add-on page.
Check out this page and click on the + Add to Firefox option to install it. The Firefox PDF Viewer add-on gives you an effective PDF document viewer for the browser. However, you can still open PDF documents in Firefox. The Firefox browser does not include any built-in options with which to open PDF documents. This article covers opening PDF documents with Google Chrome. You can open PDF (Portable Document Format) documents with both PDF software and browsers.
