Firefox for Android Support Forum

There is a forum where poster tried to embed YouTube video, but YouTube refused to deliver the data. All browsers display there instead their customized messages about website error. So does Firefox for Android 113.2.0, but in this message it refers to itself as Nightly. Seems like developers forgot to tweak some settings in project.

Nightly Can’t Open This Page

To protect your security, m.youtube.com will not allow Nightly to display the page if another site has embedded it. To see this page, you need to open it in a new window.

Until recently (sorry, I don't know which version I upgraded from), it was possible to let media play the background with Firefox for Android. Media would show up on the lock screen and could be played/paused from there when open in the browser. Now, I have found no way of playing media from Firefox without having the window in focus.

I'm wondering if this was an Android change or a Firefox change that broke Android detecting media playing in Firefox, and whether this is/was intended, a known issue, or a bug?

I'm on Android 13 (Oxygen OS 13 on OnePlus Nord 2T), with Firefox version 112.2.0 (release April 24 on the play store).

Steps to reproduce problem. 1. Navigate to YouTube with Firefox for Android. 2. Open page of any video which has comments. 3. Switch webpage display mode to 'version for PC'. 4. Now the page layout top-to-bottom should be like: - player with main video - list of videos that may interest you - comments section 5. Expected behavior: load comments section below list of recommended videos, like Chromium based browsers do. 6. Actual behavior: Firefox fails to load comments section, perhaps some script doesn't fire up.

No media notification while watching youtube videos (since Firefox 111 or earlier).

It was availabe recently, it was possible to play video in the background. Now it's no longer possible.

i checked on two different Android devices - the same issue.

Any tips?

Thabk you for help.

Just a white screen today.

• Restarting device didn't help
• Settings > Apps > Firefox Nightly > Force stop didn't help

Android has an option to clear a cache, but I don't know whether that is safe. Would prefer not to clear data if possible to avoid.