1547725 - Facebook video not played, but other browsers do

Status: RESOLVED DUPLICATE of bug 1322001

(Web Compatibility :: Site Reports, defect)

Description

[37313]

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

Nightly today's install = 64 bit, Windows
The forum shared a link to the video. Everyone can watch this video without Log IN or registering, but I can't watch this video on Nightly.(without logging in to the facebok account)
https://m.facebook.com/story.php?story_fbid=2720818334658509&id=488398234567208

I tried new install of Nightly - in new folder and without any extension! video NOT PLAY!

Actual results:

After clicking on the link, the video does not play, when you click on the video, you are prompted to log in to the facebok account or register.
On Google Chrome, the video is played after clicking on it.(without logging in to the facebok account) - I tried it on my computer.
Participants in the forum, where the link is from, say that this video PLAY them without logging in to the facebok account.

Expected results:

Video must PLAY without login or register

Comment 1

[Alice0775 White]

UA spoofing will fix the issue.

In about:config,
set general.useragent.override to Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36")

So, I think this seems to be the site problem.

Comment 2

[Gingerbread Man]

:valentin when you get a chance, please check if this is a duplicate of bug 1322001 or bug 1516824. Reporter's user agent suggests desktop, but the link suggests mobile.

Comment 3

[37313]

Alice0775 White

I change this settings, then video from the this topic play normally,
BUT youtube stopped working completely! :)
See picture - no errors or warnings, page scroll normally, but NO video, or text, or anything.
I updated the page, ran it without extensions, nothing changes.

Comment 4

[37313]

Attachment: nothing can be clicked, select, there is no video anywhere

Comment 5

[Valentin Gosu [:valentin]]

comment 0 does sound like bug 1322001.

@37313: note that if you change the user agent it might break other sites. Make sure to change it back.