Custom Speed for Udemy

Name: Custom Speed for Udemy
Rating: 5 (2 reviews)
Author: SunnySide Dev

Reduce wasted time on Udemy by speeding up to more than 2x. Need 3x? Customize video playback speed from 0.01x to 4x (in 0.01 steps) with a slider that remembers your settings. No more being stuck with the limited speed options. Works with the new UI

Download

Install

Features & Capabilities

Update: Now works with Udemy’s new UI.

Udemy changes things pretty often, so keeping the extension working takes ongoing updates and maintenance. If you enjoy using it and want to support continued development and future fixes/updates, we’d really appreciate it.

Note: Get Udemy UI Switch if you wish to switch to the old interface.

Tired of being stuck with limited video speeds on Udemy?

Take back full control of your Udemy video speed on Firefox.

This extension lets you adjust playback speed from 0.01x to 4x with a smooth slider, so every course fits your learning pace perfectly.

Now you will reduce wasted time.

Fine-tune speed with 0.01 increments to speed up or slow down exactly how you want.

Remember your last speed - so there's no need to adjust for every new video.

Works just right with Udemy’s player without changing the site’s behavior.

Learn faster, slower, or just right... all with one easy extension!

Add to Firefox now and start learning smarter today :)

Heads up : Playback speed is currently capped at 4x to help prevent possible video/audio issues at very high speeds. This may change as technology improves.

This extension stays free thanks to people like you. If it saved you time or made browsing easier, help keep it fast, private, and free. Support our development if you’d like

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.0.2 Last updated: 2026-05-19

Version code:

6267994

Creation date:

2025-06-21

Risk:

Permissions:

storage
tabs
*://*.udemy.com/*

Content scripts matches:

*.udemy.com

Size:

12.88KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 14,954 ▼ 833

Other rankings

#51 in custom feed keyword 27 ▼ 2

#75 in speed keyword 47 ▼ 8

#77 in custom font keyword 28 ▼ 1

#85 in customer keyword 12 ▼ 5

#145 in appreciate keyword 37 ▼ 3

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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:

SunnySide Dev

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/custom-speed-for-udemy/

Is Custom Speed for Udemy 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.

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

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Low ******* ****** ** *** ********* ******** *********

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.

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

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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