Disable YouTube 60 FPS (Force 30 FPS)

Tells YouTube that your browser only supports videos at 30FPS or less, which switches all 60FPS videos to 30FPS and allows old computers to watch high-resolution videos without stutter!

These are versions of this script where the code was updated. Show all versions.

  • v1.9.1 2017-11-07 Updated script metadata and beautified code
  • v1.9 2017-09-19 Just a little bit of autumn cleaning (after all these recent changes), to improve the source code readability.
  • v1.8 2017-09-18 Enhanced processing speed for the injection-counter in your browser's address bar.
  • v1.7 2017-09-18 Improved the code injection checker. Now uses a hybrid method with rapid detection of your web browser's potential success or failure, and then follows it up with a complete verification a few seconds later. This new method greatly enhances the success rate in all browsers.
  • v1.6 2017-09-06 Improved compatibility with unsupported browsers. Only Chrome and Safari are officially supported, but now it works in Firefox too, and probably others as well.
  • v1.5 2017-09-05 New method for detecting successful code injection, now works again after YouTube's recent code changes
  • v1.4 2016-11-30 Finalized the code, it's now universal and ready for years of service without needing any updates!
  • v1.3 2016-11-23 Complete rewrite of the Safari web browser bug workaround
  • v1.2 2016-09-23 Small enhancement for Safari 10 on macOS Sierra
  • v1.1 2016-09-18