Video Speed Controller (YouTube + RuTube) by MaxScorpy

Watch lectures, tutorials and reviews in less time. Video Speed
Controller puts a row of speed buttons right under the YouTube,
RuTube and Dzen player — one click takes a slow talk up to 2x, one more click
brings it back to 1x. A slider and customizable hotkeys give you exact
control.

WHAT IT DOES

• 9 preset speed buttons on YouTube (1x, 1.5x, 1.75x, 2x, 2.25x, 2.5x,
  2.75x, 3x, 3.25x) and 9 on RuTube (1x through 3x in 0.25 steps),
  positioned right below the video. The 1x preset is included by
  default so a fast-forwarded video can return to normal in a single
  click. The button row is customizable (you can add speeds up to 4x).
• Slider for in-between values, with a coloured fill and a value
  tooltip that follows the thumb so you always see the exact rate.
• Single-click on a button = temporary speed for this video only.
  Double-click = save as the default for new videos. The saved speed
  is marked with a small accent dot in the corner of its button.
• Configurable hotkeys — assign multiple combinations per action so a
  remote and a keyboard can both trigger speed changes. Rebind them and
  set the step size in Settings → Keys.
• In-player gear menu with four tabs:
• General: slider position (right / below / inside player), language
  switch (English / Russian), preset chips grouped by range
  (slower than 1×, 1×–2×, faster than 2×), behaviour toggles.
• Keys: rebind speed-up / speed-down, add additional combos,
  reset to defaults.
• Diagnostics: copy a structured report for bug submissions; clear
  cached selectors if a site update breaks the panel.
• Support: feedback form (sends to the developer's Telegram via a
  Cloudflare Worker — no third-party analytics).
• Toolbar popup mirrors the in-player menu so you can adjust settings
  without opening a video.
• Dzen video and VK Video are supported as OPT-IN sites: they are not
  requested at install time, so an update never disables the extension.
  Open a video there, click the extension icon and press "Allow" once.
  On VK the extension only ever runs on the video section.
• RuTube-only quality-of-life toggles: hide the overlay player title,
  hide Premium subscription banners.
• Accessibility: aria-labels on the gear button, aria-live status
  announcements for diagnostic state and speed changes,
  prefers-reduced-motion support. In fullscreen the panel steps out of the
  way — no extension UI on top of the picture; the shortcuts keep working.

WHY IT'S RELIABLE

When YouTube or RuTube ships a layout change, the panel recovers
automatically through a five-strategy discovery chain (cached selector
-> exact match -> substring match -> walk up from the video element
-> geometric heuristic). A built-in watchdog detects broken state,
purges bad cache entries, and re-attaches the panel. If the player
SPA-navigates between videos, the panel re-mounts via a MutationObserver
without losing your settings.

PRIVACY

• All settings stored locally in browser.storage.local.
• Zero telemetry, zero analytics, zero remote calls.
• The AMO data_collection_permissions disclosure is set to "none".
• Source available on GitHub for review.

LANGUAGES

English and Russian. UI language is auto-detected from your browser on
first run; switch any time from the gear menu.

AFTER YOU INSTALL

A short walkthrough opens automatically in a new tab: what each control
does, how to set your keyboard shortcuts, and how to pin the icon to the
toolbar. It takes about a minute, and you can close it and start using
the extension right away.