1817662 - Video does not resume after clicking play button on certain websites

Status: RESOLVED WORKSFORME

(Core :: Privacy: Anti-Tracking, defect, P3)

Description

[Alice0775 White]

Video does not resume after clicking play button on certain websites.
The problem seems to be reproduced in Nightly build only, not reproduced in Firefox beta111.0 and release110.0 build.

Steps to reproduce:

1. Open https://lifehacker.com/the-easiest-ways-to-dry-your-laundry-faster-1850082752 (do not need sign-in)
2. Scroll down to the washing machine video in the "Related Content" section.
3. Wait a moment for the video to play automatically.
   (You may see an advertisement, but please wait until the washing machine video starts.)
4. Click on the video to pause it.
5. Click on the play button in the center of the video content.

Actual results:
At step 5, the video would not start.

Expected results:
The video should continue to play.

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=52ba9b55ca7c15bb591db67c0573f3cb943739a6&tochange=d41d9a65cf6fb8f5b295d55eb0df452b5ac635a8

Workaround:
Setting privacy.trackingprotection.emailtracking.enabled to false fixes the issue.

Comment 1

[BugBot [:suhaib / :marco]]

:timhuang, since you are the author of the regressor, bug 1773695, could you take a look? Also, could you set the severity field?

For more information, please visit auto_nag documentation.

Comment 2

[Alice0775 White]

I cannot reproduce this on Nightly113.0a1 Windows10 anymore.