Focus Flow: Thumbnail Mask

Name: Focus Flow: Thumbnail Mask
Author: zellhive

By: zellhive Add-on

Hide and customize YouTube thumbnails to reduce visual clutter and browse with intention.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-10-17

Version:

1.0.0

Last updated: 2026-08-17

Features & Capabilities

Focus Flow is a lightweight, utility-focused browser extension designed to enhance and personalize your YouTube viewing experience. Built for users who want a cleaner, distraction-free interface, it puts you completely in control of your digital environment.

Distraction-Free "Focus Mode": Seamlessly toggle a custom layout that transforms the standard, cluttered YouTube interface into a clean, focused viewing space.

Custom Background Engine: Personalize your experience by uploading and applying your own custom images directly to the YouTube interface.

Blazing Fast Performance: Built with optimized DOM injection and local storage, ensuring a highly customized, aesthetically pleasing environment with absolutely zero impact on your browser's speed.

Secure & Local: Your images and settings are saved locally on your own machine.

Zero Clutter: No ads, no monetization features, and absolutely no user tracking.

Just a better way to watch.

User Growth & Download Statistics

Add-on

By:

zellhive

Daily users:

Version:

1.0.0 Last updated: 2026-08-17

Version code:

6414108

Creation date:

2026-08-14

Firefox add-on GUID:

focusflow@yourdomain.com

Firefox add-on numeric ID:

3053974

Firefox on Android:

Risk:

Permissions:

storage

Host permissions:

https://www.youtube.com/*

Content scripts matches:

www.youtube.com

Size:

20.49KB

Email:

ge*****@gmail.com

Website:

https://zellhive.github.io/ DR 0

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-10-17

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:: zellhive
Firefox Add-ons Store: https://addons.mozilla.org/firefox/addon/focus-flow-thumbnail-mask/
Email:: ge*****@gmail.com
Website:: https://zellhive.github.io/

Is Focus Flow: Thumbnail Mask 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.

Focus Flow: Thumbnail Mask 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.

Focus Flow: Thumbnail Mask is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****