topic Re: YouTube has been lagging in Discussions

YouTube has been lagging

ServingSarcasm — Wed, 15 May 2024 13:58:16 GMT

It is the browser?

Re: YouTube has been lagging

superc — Tue, 28 May 2024 23:35:25 GMT

It seems to be. YouTube freezes and stops responding to key board or mouse commands. CPU use goes up to 98% and Process Explorer shows Firefox has 18(!) processes running. Something in the last day or two of Firefox updates I think. If it continues, well goodby Mozilla.

Re: YouTube has been lagging

s_okuda — Wed, 05 Jun 2024 00:24:45 GMT

Youtube has been almost unusable on FF for at least five months now. The lag gets worse the longer you are on the site. Its like there is a ever-increasing delay for all input and most output. Closing Youtube's tab and reopening the site will sometimes fix it for a while, but usually you'll need to restart Firefox.

Re: YouTube has been lagging

Hathuka — Mon, 10 Jun 2024 21:19:29 GMT

same problem here, big stuttering on videos, lag on 1440p and 4k, only on Firefox with network activity = 0

tested on Chrome and Edge and works fine

Re: YouTube has been lagging

Agentvirtuel — Sun, 16 Jun 2024 07:22:15 GMT

Hello

https://bugzilla.mozilla.org/show_bug.cgi?id=1878510#c61 ?

Configuration Editor for Firefox https://support.mozilla.org/en-US/kb/about-config-editor-firefox ?
Search network.http.http3.enable

Other, try, embed yourvideo

Re: YouTube has been lagging

CliffOnTheRoad — Wed, 19 Jun 2024 03:26:57 GMT

My circumstance on laptop, windows 10, FF 127 on YouTube videos; takes seconds/minutes to start, freezes during playback, play/pause button does toggle but circle still moves. And the ads go black or gray square until 'skip' appears.

In FF 126, still had hangs/lags but not as bad/unusable as FF 127. When I use "browser tools""web dev tools"/console and network I see all sorts of errors of declarations "dropped" and worse I'd guess the fine volunteer folks solely work on Windows 11. Could be related to 'ad blocker' internal (I have no add-ons).

More I could give, but not enough to submit it as an official bug. Like others, I loaded "edge" browser to watch the videos. Oh give me back FF 125.

Separately, When I open FF, there is so much disk activity, and IMO there should not be. One minute full?

Re: YouTube has been lagging

Agentvirtuel — Wed, 19 Jun 2024 05:14:51 GMT

Hello

@CliffOnTheRoad wrote:
Oh give me back FF 125.

Take a look at https://connect.mozilla.org/t5/discussions/using-older-versions/m-p/52738

Re: YouTube has been lagging

Theras — Wed, 26 Jun 2024 16:11:50 GMT

Hey, new to Firefox and this has been happening to me since I got it. YouTube is unusable in some videos, and totally fine in other.
It lags, skips, freezes and buffers so much in certain videos at certain points, that it makes that entire part of the video, up to 5 - 10 seconds, unwatchable.

Re: YouTube has been lagging

Beau_Frederick — Sat, 03 Aug 2024 05:10:26 GMT

network.http.http3.enable

Enabled, and didn't help. Connection speed doesn't exceed 2000 Kbps/s, Buffer Health is almost always empty.

But changing HTTP User-Agent header on Android helped. Video at high resolutions became smooth, and the buffer is always full.

Re: YouTube has been lagging

Probabilistic — Thu, 12 Dec 2024 07:55:36 GMT

Same here. After watching a few videos on youtube, keyboard controls lag from an input for about 3-10 seconds. Mouse cursor disappears and if it re-appears it also lags. Any ideas what is going on?
FF 133.0.3
UBlockOrigin 1.61.2

Re: YouTube has been lagging

CliffOnTheRoad — Thu, 12 Dec 2024 09:28:05 GMT

Went with Brave as the browser to watch YT vibs for months now. It also suppresses advertisements, which is fine except when I want to help support the channel owner by watching a min of 30 seconds per ad. 🙂

Re: YouTube has been lagging

guanu244 — Thu, 16 Jan 2025 15:08:41 GMT

same. but i didn't use ublock. and i will see firefox use 1-3GB on my gpu memory.
if i use windows taskmgr close that program, will fix it maybe 10 minute.

firefox use gpu memory (last 2)

Re: YouTube has been lagging

thexfile — Fri, 24 Jan 2025 21:23:00 GMT

The same thing happens in beta Firefox. No transfer speed.

Re: YouTube has been lagging

medianet7070 — Sat, 25 Jan 2025 13:28:07 GMT

Thanks for the information. Freecine Android is mainly used to stream movies on Android devices. It can change your android device into cinema.

Re: YouTube has been lagging

thexfile — Sat, 25 Jan 2025 16:56:31 GMT

It's youtube that causing the connection problems.

Re: YouTube has been lagging

atdoorstep — Wed, 19 Feb 2025 10:07:05 GMT

If YouTube is lagging, try these steps: Clear the app's cache and data. You can also uninstall and then reinstall the app. Make sure your internet connection does not overload and is stable. You can improve the playback by lowering the video resolution.

For more Details about mobile lagging problems visit mobile repair near me

Re: YouTube has been lagging

Amicus — Fri, 16 May 2025 16:42:18 GMT

YouTube has a "spamvelope" code that "watches" and does the forced spam thing, and makes sure they get their pay for wasting folks' time with spam. AND they are now grabbing the mouse cursor to make it harder to hit the skip button, which they move between two spots. Chrome does not, so someone along the way here is not compliant or has deliberately put in code that causes some kind of internal rehash. My bet is YouTube and Chrome just walks past it. But Firefox most definitely has been freezing now after watch a certain number of videos or some other "did they get the spam force" code segment looping. NEVER a problem on Chrome.

Re: YouTube has been lagging

Amicus — Fri, 16 May 2025 16:46:28 GMT

Odd that... killing Firefox and restarting does ALWAYS work to stop the halted video thing which I experience. But THAT is NOT what should be needed. I mean even opening a new tab or window and pasting the link in does not allow the video to start, so the only thing that works is a restart of FF itself and no one should find that acceptable. Especially if I have other tabs open, and I ALWAYS do.

Re: YouTube has been lagging

baldevraja — Mon, 05 Jan 2026 07:30:30 GMT

Hey Mozilla Community,

YouTube lagging usually isn’t caused by the platform itself but by the browser, cached data, outdated versions, or heavy extensions running in the background. Clearing cache, updating the browser, or switching browsers often fixes the issue; otherwise, visiting websites or using lightweight streaming apps like Desi Cinema iOS can offer a smoother, buffer-free viewing experience as an alternative.

Best Regards!!