Youtube Custom Speed Firefox

Youtube Custom Speed

Change the speed of Youtube videos to whatever you like, with customizable presets and keyboard shortcuts!

Features & Capabilities

Youtube Custom Speed lets you customize the playback speed of any Youtube video, from as slow as 0.0125x to ultra-fast 16x speeds. Easily set your preferred speed presets in the options menu and switch speeds on the fly using convenient buttons below the video or familiar keyboard shortcuts (Shift + , and Shift + .). This extension enhances your viewing experience for tutorials, music, and more by giving you total control over video pace. If you encounter any issues, support is available via email for bug reports.

User Growth & Download Statistics

Manifest V3 Add-on
By:
nizioleque
Daily users:
2,837 -27
Rating:
4.38
(39)
0.06
Version:
1.10 Last updated: 2025-10-23
Version code:
6060287
Creation date:
2023-06-09
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
Content scripts matches:
  • www.youtube.com
Size:
33.85KB
Email:
no*****@niziolek.dev
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-13
Compare stats and ranking:

Other platforms

Chrome
Youtube Custom Speed (v1.10)
30,000 4.58 (253)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
nizioleque
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/youtube-custom-speed/
Email:
no*****@niziolek.dev

User Reviews

Youtube Custom Speed is valued for its custom speed options, native-looking UI, and active maintenance. It integrates smoothly with YouTube, is open-source, and remains lightweight. Users would like configurable keyboard shortcuts and have noted stability issues where the UI intermittently disappears. Overall, it’s a solid, well-maintained tool for precise speed control, with room for improvements in keyboard bindings and reliability.
Pros
  • Custom speeds with the ability to define default speeds and custom increments for fine-grained playback control.
  • Polished, YouTube-friendly UI that feels native and lightweight, with an unobtrusive integration.
  • Free and open-source, offering a clean design and ongoing maintenance.
  • Active maintenance and quick updates to align with YouTube changes, showing good responsiveness from the developer.
  • Good performance on various setups (e.g., macOS M1) with a minimal footprint.
Cons
  • Lack of configurable keyboard shortcuts; users want to assign their own keys (e.g., plus/minus) to adjust speed.
  • Intermittent visibility/stability: the UI can disappear or fail to show up, occasionally requiring reload or reinstallation, and may duplicate UI elements when it reappears.
Recent reviews
Not customizable at all, has a few options and anything over 5x or below 0.25x will work badly. 16x has no audio and 0.1x doesn't play at all. The UI also doesn't feel comfortable and you need to be clicking on it instead of hovering to change, but if you hover, it will pop up.
by EC*****, 2026-07-08

I don't understand why there is no custom shortcut, it's unusable without them. The default youtube shortcuts don't work on azerty keyboard.
by Cu*****, 2026-07-02
View all user reviews ›

Is Youtube Custom Speed Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Youtube Custom Speed requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: youtube.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Youtube Custom Speed is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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