URL: https://www.facebook.com
Browser / Version: Firefox 76.0
Operating System: Windows 10
Tested Another Browser: Yes Chrome
Problem type: Site is not usable
Description: Browser unsupported
Steps to Reproduce:
According to Guillermo (https://support.mozilla.org/es/questions/1283313), Firefox does not support Facebook group video calls, even supporting the necessary protocols to support it. Only Firefox and Edge (EdgeHTML) are affected by this. However, the Chromium-based or WebKit-based browsers do not have any problems.
View the screenshot

Browser Configuration
- gfx.webrender.all: true
- gfx.webrender.blob-images: true
- gfx.webrender.enabled: true
- image.mem.shared: true
- buildID: 20200402095145
- channel: nightly
- hasTouchScreen: false
- mixed active content blocked: false
- mixed passive content blocked: false
- tracking content blocked: false
View console log messages
From webcompat.com with ❤️
URL: https://www.facebook.com
Browser / Version: Firefox 76.0
Operating System: Windows 10
Tested Another Browser: Yes Chrome
Problem type: Site is not usable
Description: Browser unsupported
Steps to Reproduce:
According to Guillermo (https://support.mozilla.org/es/questions/1283313), Firefox does not support Facebook group video calls, even supporting the necessary protocols to support it. Only Firefox and Edge (EdgeHTML) are affected by this. However, the Chromium-based or WebKit-based browsers do not have any problems.
View the screenshot
Browser Configuration
View console log messages
From webcompat.com with ❤️