YouTube SpeedUp by GoliafRS

A simple Firefox extension to speed up YouTube videos.

4.8 (5 reviews)

280 Users

You'll need Firefox to use this extension

Download Firefox and get the extension

Download file

About this extension

Usage Guide

1. Install the Extension
- Click "Add to Firefox" to install YouTube SpeedUp.

2. Open a YouTube Video
- Go to any YouTube video page.

3. Find the Speedometer Icon
- Look for the speedometer icon near YouTube's default video controls (subtitles, settings, etc.).

4. Adjust Playback Speed
- Scroll up with your mouse wheel to speed up the video (e.g., 1.25x → 1.5x).
- Scroll down with your mouse wheel to slow down the video (e.g., 1.5x → 1.25x).
- Left-click the speedometer icon to reset playback speed to normal (1.0x).

5. See the Current Speed
- Hover over the speedometer icon to see a popup showing the current playback speed.

Note

Supports speeds from 0.25x to 16x.
Default speed shift step is 0.25x.

Compatibility

Designed for Firefox on desktop (Windows, macOS, Linux).

Rated 4.8 by 5 reviewers

Release notes for 1.0.10

🔥 New Features & Improvements:

Enhanced Video Speed Persistence
Video playback speed is now correctly applied when switching between videos without reloading the page.
Added support for YouTube’s yt-navigate-finish event to detect video changes dynamically.
Implemented a MutationObserver to detect and apply speed settings when the video element appears.

Improved UI Button Behavior
Fixed an issue where the speed control button was not always inserted properly.
Ensured the button is only added once and does not get duplicated.
Improved text visibility and responsiveness when hovering over the button.

Smoother Speed Adjustment
The speed adjustment text now updates in real-time when scrolling.
Speed changes are instantly reflected without requiring additional user interaction.

🐛 Bug Fixes:

Fixed Speed Reset Issue
Speed is now correctly restored from localStorage when loading a video.
Fixed Speed Application on Page Load
Speed is now applied immediately when a video is detected.
Fixed Interaction Requirement
The speed setting is now applied automatically without requiring user interaction with the extension button.

⚙️ Technical Improvements:

Refactored Code for Better Structure
Improved function organization and readability.
Encapsulated video speed logic into reusable functions.

🚀 This update ensures a seamless experience when watching videos on YouTube with custom playback speeds!

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