

The built-in PDF viewer will open the PDF file in Firefox without saving it. (To learn more about the built-in viewer, see Using Firefox's built-in PDF viewer, below.) When you click on a link to a PDF file or open it from the Firefox Downloads panel, it will be rendered with the built-in PDF viewer. The built-in viewer is used when Portable Document Format (PDF) files are set to Open in Firefox in your Firefox settings for different types of files.

Make sure your PDF Reader can open remote URLs before enabling this option It is possible to ask the extension to send the PDF URL to the external executable. If this mode is enabled, the extension blocks the default action when a link with the PDF mime type is the target. It is now possible to define left-click open in default PDF reader from the options page. Open the external PDF viewer with a user-defined delay Detect PDF links and open them with left-clickĤ. Transfer already opened PDF files to the external PDF viewer by pressing the browser's action buttonģ. Open PDF files from right-click context menuĢ. Native client installation guide appears on the first usage.ġ. Note that to execute an OS-level command, you need to install a native client. Adobe Acrobat Reader or FoxIt PDF reader). The extension downloads the PDF file in your default downloads directory and then executes the external command to open the downloaded file with the default PDF viewer (e.g.

To use the extension, right-click on a PDF link and select the "Open in PDF viewer" item. The "Open in PDF viewer" extension opens PDF files directly in your favorite external PDF viewer application.
