You can also drag and drop PDF file stored on your Computer onto Firefox to open. You can use “Toggle Sidebar” button to view sidebar on left which shows thumbnails of the page. You can zoom in/out the page in PDF by clicking on ‘_’ ‘+’ controls on the toolbar.You can download the PDF file to your Computer by clicking on down arrow button located on top of right side of the page.
Users using Firefox 13 stable version can test this feature by downloading this add-on. If a PDF file can’t be displayed properly then it displays the message on top that “This PDF document might not displayed correctly “ and asks user to open with different Viewer much like Chrome says to open with Adobe Reader when it encounters a PDF that it can’t display some parts of the file.