Content Keyword Blocker

Name: Content Keyword Blocker
Author: Abdul Basit

CKB is a productivity extension that allows users to block keywords in search URLs and page content that may lead to distractions. If you want, I can also make it slightly more engaging and user-friendly without changing the meaning.

This add-on was removed from Firefox Add-ons Store on 2026-04-26

Overview

Removed

Daily users

Data as of 2026-04-26

Version:

0.3

Last updated: 2026-04-24

Download

Features & Capabilities

Features:

Users can add keywords to be blocked. If a user types a blocked word in a tab, the tab will automatically close.

Users can set a time period for a keyword to be active by going into settings and checking “Follow Schedule” when adding the keyword.

Keywords can be removed by going into settings and clicking on the keyword.

Background music playing on YouTube can be disabled by checking “Disable BDM.”

To prevent users from removing blocked keywords, a master password can be set the first time. Settings can only be changed if the password is entered.

User Growth & Download Statistics

Add-on

By:

Abdul Basit

Daily users:

Version:

0.3 Last updated: 2026-04-24

Version code:

6233815

Creation date:

2026-03-17

Firefox add-on GUID:

ClearTab@gmail.com

Firefox add-on numeric ID:

2990581

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Content scripts matches:

<all_urls>
www.youtube.com
m.youtube.com

Size:

1.84MB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-04-26

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:

Abdul Basit

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/cleartab/

Is Content Keyword Blocker 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.

Content Keyword Blocker requires some sensitive permissions that could impact your browser and data security. 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.
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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.

Content Keyword Blocker may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.