YouTube Section Looper (opensource) Firefox

YouTube Section Looper (opensource)

Loop a selected segment of any YouTube video with optional repeat count. Bookmark your url's along with looper settings.

Features & Capabilities

YouTube Section Looper is an opensource project that adds a small control panel directly on YouTube watch pages. Set the start and end timestamps (by button or manual entry), choose how many times to repeat, and play the loop automatically. Settings are saved per video so you can return later and continue looping.

Update (25 Mar, 2026): Added a 'Adv' button which expands UI to show options to control speed and pitch (simple pitch shift linked to speed control, not studio quality)

Update(29 mar, 2026): Ability to bookmark yt url's along with looper configuration. eg: Set the looper section times, number of loops etc.. and bookmark the url (using the looper star icon or usual firefox bookmark action). The url now contains information which looper will use to preload the loop section details.

https://github.com/sudhir-asuracore/firefox-youtube-looper

(content looper, video looper)

User Growth & Download Statistics

Manifest V3 Add-on
By:
Sudhir Babu Nakka
Daily users:
42 2
Rating:
5.00
(1)
Version:
0.3.1 Last updated: 2026-03-29
Version code:
6200097
Creation date:
2026-01-28
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
Host permissions:
  • https://www.youtube.com/*
Content scripts matches:
  • www.youtube.com
Size:
25.63KB
Email:
su*****@sudhirnakka.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-18
Compare stats and ranking:

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:
Sudhir Babu Nakka
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/youtube-section-looper/
Email:
su*****@sudhirnakka.com
Website:
https://github.com/sudhir-asuracore/firefox-youtube-looper

Permission Change History

2026-03-29: Version 0.2.0 → 0.3.1
Add Permissions: bookmarks

User Reviews

A well written plugin that implements an A-B looper popup by a button under the youtube video. The best part of it is that it's open source, on github, and it actually works in the latest Firefox (Librewolf) unlike many others. MIT license and open source means we can fix it as well if we ever need to. Excellent tool for musicians out there to auto loop segments of a video for study, with a repeat count as well if you want. I think this is a really good take on an A-B looper, solving the function without getting in the way, by adding looper button next to subscribe (under the video) which in turn opens a menu that spawns above the description when clicked, and can be hidden again while in use. To use you can mark via mouse using the menu buttons and click set start / set end, or just enter the --:-- / --:-- duration for start and end manually via keyboard (with 1 second granularity.) Nice work developer, I'd say this is a must have plugin. I'd also say it's underrated, but it seems it just released ..so I've adjusted your rating to 100% (1 of 1) five star reviews ;-)
by AF*****, 2026-02-16
View all user reviews ›

Is YouTube Section Looper (opensource) 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 Section Looper (opensource) requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: youtube.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Medium ****** ** ********* *** ******* ******** **** **** *********** *** ********* *** ********* ******* *** *****
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 Section Looper (opensource) 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.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
  • Good **** ********* *** **** **** *******
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