[Bug]:Videos not loading

[bruh28a]

Preflight Checklist

• [X] I have checked the issue tracker for issues that may be similar to mine.
• [x] I have checked whether this issue can be reproduced on another setup (e.g. other operating system or browser version/channel)
• [X] I have checked that the title is not empty.

Description

None of the videos I try to watch are loading.

Steps to Reproduce

watch a video

Actual result

absolutely nothing happened and the video screen was black.

Expected result

the video shouldve played.

Browser version

Nightly v87.0

Browser build date

2021-07-24

Browser channel

Nightly

Other information

No response

[kierandrewett]

Do videos load on Firefox or Chrome?

[tomByrer]

Do videos load on Firefox or Chrome?

& for what sites do & do not work?