URL: https://www.udemy.com/

Browser / Version: Firefox 138.0
Operating System: Windows 10
Tested Another Browser: Yes Other

Problem type: Video or audio doesn't play
Description: The video or audio does not play
Steps to Reproduce:
I'm unable to play any video on Udemy using Firefox and Zen browsers (both based on Mozilla). The video section just shows a blank screen with no video or audio. However, Udemy’s system check confirms that both browsers are compatible.

View the screenshot

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