# MarkN Video Speed > Change video and podcast speed with one keypress. Three buttons, big on-screen readout, zero tracking. YouTube, Netflix, and beyond. Canonical page: [https://chrome-stats.com/d/markn-video-speed](https://chrome-stats.com/d/markn-video-speed) ## Overview - **ID:** `markn-video-speed` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** MarkN - **Category:** photos-music-videos - **Daily users:** 1 - **Version:** 1.0.5 - **Last updated:** 2026-08-01 - **First published:** 2026-05-10 - **Size:** 45 KB - **Data as of:** 2026-09-11 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/markn-video-speed/) - **Website:** [https://github.com/MarkN2000/MarkNVideoSpeed](https://github.com/MarkN2000/MarkNVideoSpeed) - **Privacy policy:** [https://addons.mozilla.org/firefox/addon/markn-video-speed/privacy/](https://addons.mozilla.org/firefox/addon/markn-video-speed/privacy/) ## Description A lightweight extension that puts video and podcast playback speed behind a single keypress — no more digging through player menus. Slow down, speed up, or return to normal with a single key. Works on YouTube, Netflix, podcasts, online courses, and other sites that use HTML5 media. ━━━ Only 3 shortcuts to remember ━━━ • Slow down (default: S) • Speed up (default: D) • Toggle 1.0x ⇄ your target speed (default: R) That is all you need to learn. No menus to navigate. Each action can be rebound to any A–Z or 0–9 key. ━━━ A speed indicator that stays out of the way ━━━ So it does not disrupt your viewing, the speed indicator (such as "1.50x") appears at the center of the screen for just a moment when you change the speed, and fades out in about 0.3 seconds. You can confirm the current speed at a glance, without opening the player's settings menu. It also works in fullscreen. ━━━ Speed persists across sessions ━━━ Once set, your speed is retained across tab switches, video changes, and browser restarts. Settings are stored via chrome.storage.local only. They are not synced to a Google account, and they do not leave your device. ━━━ Re-applies speed when sites reset it ━━━ YouTube and a few other sites silently reset playbackRate to 1.0x after an ad, a seek, or a quality change. This extension watches for those moments and reapplies your chosen speed automatically. ━━━ Embedded players, audio, local files ━━━ • YouTube / Vimeo / SoundCloud embeds in blog posts • <audio> elements — podcasts, audiobooks, web radio • Video files opened locally in the browser The same shortcuts and HUD apply everywhere. ━━━ Privacy ━━━ What this extension does NOT do: ✗ Send analytics ✗ Show ads ✗ Contact remote servers ✗ Read your browsing history ✗ Read page content or form input What it DOES do: ✓ Sets playbackRate on <video> and <audio> elements. Source is MIT-licensed and available on GitHub. Privacy policy: https://github.com/MarkN2000/MarkNVideoSpeed/blob/main/PRIVACY.md ━━━ Permissions (kept minimal) ━━━ • storage — to save your settings locally on your device. • activeTab — to read the current tab's URL when you open the popup, for the "exclude this site" toggle. • Host access — so the content script can find <video> / <audio> elements on the pages you visit. ━━━ A few additional details ━━━ • Shortcuts auto-disable while typing in text fields • Modifier keys (Ctrl / Alt / Shift / Meta) are ignored, avoiding collisions with browser or site shortcuts • Step size is adjustable in 0.01 increments (useful for language learning) • Any single site can be excluded with one click • Speed up / slow down also updates the toggle target, so the speed you fine-tune while watching becomes the toggle destination • Popup UI switches between English and Japanese automatically ━━━ Open source ━━━ GitHub: https://github.com/MarkN2000/MarkNVideoSpeed License: MIT ## Rankings - #106,004 — Overall - #71 — video speed ## Permissions and access ### Permissions - `storage` - `activeTab` ### Content script matches - `*` - `` ## Safety - **Risk impact:** Moderate risk impact - **Risk likelihood:** High risk likelihood ### Analysis details - Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site. - This extension has low user count. Unpopular extensions may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [Playback Speed Extension](https://chrome-stats.com/d/playback-speed-extension) — 25 users - [Playback Speed Controller](https://chrome-stats.com/d/psc-playback-speed-controller) — 7 users - [Global Speed - Video Speed Control](https://chrome-stats.com/d/global-speed) — 57,108 users, 4.73 / 5 - [YouTube Speed Keys](https://chrome-stats.com/d/youtube-speed-keys) — 8 users, 5.00 / 5 - [0.05 + - video speed controller](https://chrome-stats.com/d/0-05-video-speed-controller) - [Netflix Speed Controller](https://chrome-stats.com/d/netflix-speed-controller) — 17 users - [Video Speed Controller X](https://chrome-stats.com/d/video-speed-controller-x) — 11 users - [Change Video Playback Speed](https://chrome-stats.com/d/change-video-playback-speed) — 13 users - [Simple Skip](https://chrome-stats.com/d/simple-skip) - [YouTube Speed Master](https://chrome-stats.com/d/youtube-speed-master) — 44 users - [SpeedFlix](https://chrome-stats.com/d/speedflix) — 15 users - [SpeedBang - Video Speed Booster](https://chrome-stats.com/d/speedbang-video-speed-booster) — 11 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/markn-video-speed)