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I am trying to automate a website that has a webcam stream in it. In order to automate it, I need some way to fake a webcam.

I know the option -use-fake-device-for-media-stream simulates a webcam in Chrome. This is working for me in Chrome. Now I need to get the same working in Firefox.

I got the following information from internet while researching on this. "In Firefox, a special fake:true variable in the getUserMedia() calls will achieve this".

I did not understand how to code this up. Can anyone advice please? I am using java based selenium.

Eugene S
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Juby
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2 Answers2

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This can be done in Firefox at various levels:

  • System
  • User Level
  • Profile Level etc

Set following props in either user.js, pref.js or channel-prefs.js

pref("media.navigator.permission.disabled", true);
pref("media.navigator.streams.fake", true);

OR

user_pref("media.navigator.permission.disabled", true);
user_pref("media.navigator.streams.fake", true);

Then reboot your machine or restart firefox service.

After that call your URL which invokes getUserMedia() Firefox will display Fake Audio/Video.

Zoltan Toth
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user5958722
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You can use:

profile.setPreference('media.navigator.streams.fake', true);
Ostap Maliuvanchuk
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