I have a requirement to navigate to a PDF URL in Firefox Headless and then enter a search term, but for some reason the PDF never gets loaded or rendered with a screenshot.

Even attempting to use an external JavaScript library to embed a PDF doesn't work.

firefox -headless -screenshot https://www.epa.gov/sites/production/files/2017-12/documents/lcr_federalism_consultation_letter.signed.12_14_17.pdf
firefox -headless -screenshot https://mozilla.github.io/pdf.js/web/viewer.html

Are there any options via Selenium or perhaps with an external PDF viewer that can be used in conjunction with Headless Firefox, to open a PDF URL and then enter a search phrase?

Any idea?

$ node selenium-test.js
/selenium/selenium-test.js:7
var binary = new firefox.Binary(firefox.Channel.NIGHTLY);
             ^

TypeError: firefox.Binary is not a constructor
    at Object.<anonymous> (/selenium/selenium-test.js:7:14)
    at Module._compile (module.js:662:30)
    at Object.Module._extensions..js (module.js:673:10)
    at Module.load (module.js:575:32)
    at tryModuleLoad (module.js:515:12)
    at Function.Module._load (module.js:507:3)
    at Function.Module.runMain (module.js:703:10)
    at startup (bootstrap_node.js:193:16)
    at bootstrap_node.js:660:3

firefox -headless file://home/user/web/cli-app.html > result.txt

As of January 1 2019, Mozilla requires that all GitHub projects include this CODE_OF_CONDUCT.md file in the project root. The file has two parts:

1. Required Text - All text under the headings Community Participation Guidelines and How to Report, are required, and should not be altered.
2. Optional Text - The Project Specific Etiquette heading provides a space to speak more specifically about ways people can work effectively and inclusively together. Some examples of those can be found on the Firefox Debugger project, and Common Voice. (The optional part is commented out in the raw template file, and will not be visible until you modify and uncomment that part.)

If you have any questions about this file, or Code of Conduct policies and procedures, please see Mozilla-GitHub-Standards or email [email protected].

(Message COC001)

Hello

I seem to struggle with the screenshot feature when running from the command line.

Things that work flawless:
firefox -headless --screenshot HA_shot.png http://www.google.com
(and other external websites I've tested)

Things that don't seem to work are local websites, examples:

• firefox -P fubar --screenshot fubar.png http://192.168.0.205:8123/lovelace/0
  (taking screenshot from my home assistant), this just doesn't generate any png file
• firefox -P fubar --screenshot intern1.png http://localhost:1313/goosst/
  (my hugo site running locally, this generates a .png file but only has a background color)

I mainly want to get the first one working (the second one was just as a test).
Is there a way how to get this working?

Thanks in advance!

System properties:

xx@xx-Latitude-E5250:~$ firefox --version
Mozilla Firefox 69.0

-xx@xx-Latitude-E5250:~$ hostnamectl
Static hostname: stijn-Latitude-E5250
Icon name: computer-laptop
Chassis: laptop
Machine ID: **
Boot ID: **
Operating System: Ubuntu 19.04
Kernel: Linux 5.0.0-27-generic
Architecture: x86-64

const binary = new firefox.Binary('C:/Program Files/Mozilla Firefox/firefox.exe');
binary.addArguments('-headless');
this.driver = new webdriver.Builder()
.forBrowser('firefox')
.setFirefoxOptions(new firefox.Options().setBinary(binary))
.build();

(node:2628) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): SessionNotCreatedError: Failed to start browser C:/Program Files/Mozilla Firefox/firefox.exe: other os error