Firefox Support Forum

I have searched for this problem, and only come across outdated information about Youtube's intentional changes to slowdown Edge and Firefox in 2019. This is not that.

When I load a new youtube video, the video will buffer as normal, and then buffering stops. Then there is a delay of about 10 seconds. You can see from my screenshot that the buffer is filled just fine, and playback begins about 10 seconds later. This also happens if I skip ahead/back or to any position in the video. This firefox install is on a new install of Windows 11, with a new xps 13. The previous xps 13 with windows 11 didn't have this problem, and I don't have this problem on my desktop setup with windows 10.

I use a few addons: decentraleyes, ublock, duckduckgo and I have privacy protections set to strict. I have tried a few troubleshooting steps and the problem persists. Things I have tried:

• safe-mode
• fresh install
• installed additional codecs
• used user-agent workarounds to show as a chromium based browser
• turned off hardware acceleration

The problem doesn't happen on chrome, but it does happen on Edge, which is strange. Because of this, I'm wondering if there is something going on with codecs. In the firefox screenshot posted, the codec used is vp09, same with Edge. But in Chrome the codec is av01.

For the last couple of months I've been having an issue with Firefox freezing when I bring up a news article on Yahoo. It only happens when there is a video attached to the article, the video and the text of the article won't load. After a few minutes there is a message saying "This page is slowing down Firefox. To speed up your browser, stop this page". All of the Yahoo news articles work fine when I bring them up in Chrome. How can this be fixed??

I've written about this before, but no help? I'm using Firefox Mac 78.15 (up to date). When I go to CNN and select a video, a thumbnail (still image) of the video appears, but no player with controls, so no video. When I do the same on Chrome, I get a video in a video player, which plays just fine. Also, all other videos on FIrefox (YouTube Fox News, etc.) play just fine?

This problem only started recently, I believe during the last update for Firefox. I am running Windows 10, a new Dell XPS 13. If I look at these video using Chrome, I have no problem. They start right up. But with Firefox, they just hang. Sometimes after a minute, they start to play, but sometimes they never do.

I really believe this has something to do with the latest update, because I have never had a problem before.

I previously thought this was a Udemy bug, but then I tried playing other DRM protected videos on 2x on both Firefox and Chrome to compare..... and Yes, audio(specially speech) crackles in video on playback on 2x. Reference DRM video : https://bitmovin.com/demos/drm Try playing this in 2x speed and observe the voice crackle. Does not occur on Chrome and Edge

I had a problem a while ago with crashing, which i was able to get fixed thanks to this but now i have a new problem. It seems that firefox is having memory problems of some kind, for example, i can't even get stream raiders to load.