A computer virus is sending YouTube’s internet participant into an unlimited loop of lag

a bug is sending youtubes web player into an infinite.jpg


A photo of the new YouTube playback UI as of October 2025.

Joe Maring / Android Authority

TL;DR

  • YouTube’s internet participant it sounds as if has a rendering computer virus that sends browsers into an unlimited loop of visible adjustments.
  • The consistent web page rendering loop is inflicting processor and RAM utilization to skyrocket, with customers reporting reminiscence intake within the gigabytes.
  • Customers with browsers affected by the computer virus are noticing excessive lag, stuttering, and body drops right through video playback.

YouTube customers are reporting problems with the platform’s internet participant, with the web site inflicting unexplained browser lag and excessive reminiscence utilization. The stutters, body drops, and RAM intake are affecting customers of more than one browsers, together with Firefox and Courageous, in step with posts (1, 2) on Reddit.

The builders on Mozilla’s discussion board say that the “ytd-menu-renderer” tag, which properties the like, dislike, and proportion buttons, is inflicting the visible insects. It is a versatile menu that dynamically displays and hides buttons in response to the to be had display screen width. The builders provide an explanation for that “ytd-menu-renderer” works by means of casting off one button mechanically if they’re overflowing at the display screen, and placing the buttons again when the menu component widens. The code is meant to verify handiest the buttons that are compatible for your display screen conveniently are proven.

YouTube Web Player Bug Screenshot

Alternatively, the developer feedback indicate that “hostElement.clientWidth” grows when “ytd-menu-renderer” mechanically hides a button. This reasons YouTube’s code to assume the menu house is broad sufficient to suit the button, so it provides the button again. In fact, since there isn’t in truth sufficient visible house, “ytd-menu-renderer” eliminates the button once more. The menu container expands as soon as once more, and you almost certainly get the theory. It’s a endless cycle that forces your browser and PC to stay calculating, resizing, and rendering YouTube’s versatile menu.

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This computer virus puts further pressure on a consumer’s gadget sources. Customers noticed their browser’s RAM utilization spike from a couple of hundred megabytes to eating more than one gigabytes after making an attempt to play a YouTube video. Others spotted their CPU core utilization skyrocket whilst the usage of YouTube’s internet participant, as documented by means of every other Reddit publish.

The YouTube internet participant rendering computer virus is affecting customers throughout more than one browsers, together with Courageous, Firefox, and Microsoft Edge. Mozilla is taking a look into the countless loop factor because it pertains to its Firefox browser, however it’s unclear when a repair at the YouTube facet could be to be had.

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