This userscript for YouTube offers 200+ layout changes and features such as tab view, speed control, export transcripts, square design, auto-theater mode, and much more—all easily customizable via settings panels.
productivityfirefoxchromeyoutubeaccessibilityuserscriptsafaricustomizabletampermonkeybrowser-extensionclient-sidedark-modeplayback-speedviolentmonkeylanguage-selectorprivacy-firsttab-viewlight-modequality-selectortranscript-exporter
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Updated
Aug 21, 2026 - JavaScript