Video Controls Plus — Speed, Loop & Audio Boost Extension

Video Controls Plus adds speed control, A-B looping, audio boost, video filters, screenshots, timestamped notes, and browser-local bookmarks to HTML5 videos. It installs from the Chrome, Firefox, and Edge stores. Speed control and bookmarks work without an account. Connect an account for notes, looping, audio boost, filters, screenshots, and the account library. Watch History has its own opt-in switch; the widget and keyboard shortcuts keep the controls close to the video.

Use cases

Watch lectures faster without losing comprehension

Online courses are usually paced for the slowest viewer. Set Udemy, Coursera, or LinkedIn Learning to 1.5x–2.5x and reclaim the back third of every lecture. The on-screen indicator and the [/] keys keep you in control without leaving the video player.

Drill a song or language passage with A-B loop

Press Ctrl+Alt+A and Ctrl+Alt+B to mark the start and end of a phrase, then Ctrl+Alt+L to loop. Useful for guitar tablature, vocal practice, accent training, and ear-training drills where you want the same eight-bar passage to repeat ten or twenty times in a row.

Hear quiet documentaries and lecture recordings

Some videos peak below the system maximum. The 400% audio boost lifts the gain with Ctrl+Alt+U/Ctrl+Alt+Y so you can hear soft narration and conference-room recordings without buying external audio software.

Take notes that actually link back to the moment

Connect your account, open the widget's Tools tab, and save a note at the current timestamp. Open Notes from the same tab to read or edit it on the website. Export account notes as Markdown, text, or JSON.

Capture a single video frame as an image

A keyboard shortcut grabs the current frame as a PNG. Useful for tutorial screenshots, reference photography, fitness-form review, and saving a still from any HTML5 video without recording the screen.

How it works

1. Install the extension. Add it from the Chrome Web Store, Firefox Add-ons, or Edge Add-ons. You can use speed control and browser-local bookmarks before connecting an account.
2. Open any HTML5 video. YouTube, Netflix, Udemy, Coursera, Vimeo, Twitch, Khan Academy, Dailymotion, Amazon Prime Video, Disney+, and most embedded players are supported.
3. Use the on-screen overlay or keyboard. A small overlay appears over the video. Hovering shows speed, audio boost, and quick actions; the keyboard shortcuts work whether the overlay is visible or hidden.
4. Adjust speed in 0.1x increments. Press ] to speed up, [ to slow down, or = to reset. Press Ctrl+Alt with a number from 1–8 for the configured presets, initially 0.5x through 4x.
5. Customize from settings. Open extension Settings to change keyboard bindings, default speed per site, widget placement, theme, and which runnable features appear in the right-click menu.

Examples

• A 90-minute Coursera lecture at 1.75x. Finishes in ~51 minutes; saves 39 minutes of seat time without skipping content.
• A 4-bar guitar phrase in YouTube tutorial. Looped at 0.5x via Ctrl+Alt+A → Ctrl+Alt+B → Ctrl+Alt+L until the fingering is automatic, then back to 1x.
• A quiet podcast video at 200% boost. Becomes audible on laptop speakers without an external amp; the boost stays in effect until you reset.

Frequently asked questions

Does Video Controls Plus cost anything?

The Free plan includes the core playback controls. The plans page lists the available AI allowance and account features for each level.

Which browsers are supported?

Chrome, Firefox, Edge, and any Chromium-based browser that accepts Web Store extensions (Brave, Opera, Vivaldi, Arc). Safari is not supported because Apple requires a separate native build.

Does it work on Netflix and Disney+?

Yes for HTML5 video playback (speed, A-B loop, filters, audio boost). DRM-protected services may block screenshot capture and certain audio-graph effects on specific titles.

Will it slow my browser down?

The widget appears when it finds a compatible video. Filters, recording, and audio processing do extra work while you use them; turn off an effect you do not need in Settings.

Does it send my watch history anywhere?

Watch History is off until you connect an account and enable its own opt-in switch. New bookmarks saved while connected sync to your account; bookmarks made while signed out stay in this browser.

Tips

• Press ] or [ to change speed by 0.1x; the widget also lets you enter a precise rate.
• The right-click context menu has a configurable submenu — keep only the four or five items you actually use to keep it clean.
• Press Ctrl+Alt+O to bookmark the current moment. Open Notes or Bookmarks from the widget to see items saved to your account on the website.
• Settings sync is opt-in on the Account & Sync tab. Watch History has a separate opt-in switch.

Limitations

• Video and audio capture works on supported unprotected players. It does not bypass DRM, geographic restrictions, or login walls.
• Audio boost cannot exceed the limits the browser audio graph allows on DRM-locked services like Netflix; on those, the cap may sit lower than 400%.
• Filters (brightness, contrast, saturation) apply on top of the video element via CSS — they do not modify the underlying stream and therefore cannot be exported into a downloaded file.
• Screenshots use the canvas-capture API; some streaming services that paint via protected paths return a black frame, which is enforced by the browser, not by the extension.

Last updated 2026-10-20 by the Video Controls Plus team.