Video Speed Controller X

Name: Video Speed Controller X
Author: Danny Lin

By: Danny Lin

Speed up, slow down, advance and rewind HTML5 audio/video with shortcuts

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Features & Capabilities

Speed up, slow down, advance and rewind HTML5 audio/video with shortcuts

HTML5 video provides native APIs to accelerate playback of any video, but most implemented players either hide or limit this functionality. This extension fixes that, plus more...

It will help you optimize your video viewing by allowing you to make quick playback speed adjustments, as well as rewind the video to hear the last few second one more time. We don't read at a constant speed, and we talk much slower than we read - there is no reason why we have to listen at a constant speed and at a (very) slow rate.

Once the extension is installed simply navigate to any page that offers HTML5 video, and you'll see a speed indicator in top left corner of the video player. Hover over the indicator to reveal the controls to accelerate, slowdown, or rewind the video (10 seconds + lowers playback speed). Or, even better, use your keyboard:

S - decrease playback speed.
D - increase playback speed.
R - reset playback speed.
Z - rewind video by 10 seconds.
X - advance video by 10 seconds.
V - show/hide controller.

If you prefer other shortcuts, want to change the increment value, or want the player to remember your playback speed in the future, head into the settings page and customize it to your heart's content.

User Growth & Download Statistics

Add-on

By:

Danny Lin

Daily users:

Version:

0.7.4.1 Last updated: 2025-05-01

Version code:

5938574

Creation date:

2025-04-28

Risk:

Permissions:

storage

Content scripts matches:

Size:

66.41KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 28,545 ▼ 84

Other rankings

#100 in video speed keyword 56 ▼ 4

For Developers

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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:

Danny Lin

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/video-speed-controller-x/

Website:

https://github.com/danny0838/videospeed

Is Video Speed Controller X 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.

Video Speed Controller X requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.

Video Speed Controller X 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 **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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