Install xul-ext-pdf.js by entering the following commands in the terminal:
sudo apt update sudo apt install xul-ext-pdf.js
Description:
Portable Document Format (PDF) viewer plugin for Iceweasel
PDF.js brings Portable Document Format (PDF) reading capabilities to the browser using web standard technologies. . This extension supersedes the embedded PDF.js.
Homepage: http://mozilla.github.io/pdf.js/
Version: 1.5.188+dfsg-1
Section: universe/web