# Cisdem Web Blocker

> A free website blocker to block access to specific websites and help you stay focused.

Canonical page: [https://chrome-stats.com/d/cisdem-web-blocker](https://chrome-stats.com/d/cisdem-web-blocker)

## Overview

- **ID:** `cisdem-web-blocker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Cisdem Inc
- **Category:** privacy-security
- **Daily users:** 485
- **Weekly downloads:** 31
- **Rating:** 4.00 / 5 (3 ratings)
- **Version:** 1.9.0
- **Last updated:** 2026-07-10
- **First published:** 2023-10-13
- **Size:** 2.74 MB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/cisdem-web-blocker/)
- **Website:** [https://www.cisdem.com/appcrypt.html](https://www.cisdem.com/appcrypt.html)

## Description

Cisdem Web Blocker is a free, user-friendly extension designed to help you stay focused by blocking distracting websites like YouTube and ensuring a safe browsing experience for children by preventing access to harmful or inappropriate content. With simple controls, you can block the current site instantly or add specific websites and web pages to your Block List. The extension allows easy management by enabling or disabling blocks and removing sites with a click.

For advanced features such as scheduled blocking, password protection, category-based blocking, keyword URL blocking, and whitelisting, users can upgrade to Cisdem AppCrypt. This comprehensive tool provides enhanced control over your web experience, making it ideal for productivity and child safety. Learn more at [Cisdem AppCrypt](https://www.cisdem.com/appcrypt.html).

## Rankings

- #5,067 — Overall
- #81 — stay
- #86 — ad blocker
- #89 — password-protected
- #126 — website blocker
- #128 — block ads

## Permissions and access

### Permissions

- `nativeMessaging`
- `tabs`
- `storage`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Cisdem Web Blocker Plus](https://chrome-stats.com/d/cisdem-web-blocker-plus)
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- [Website Blocker](https://chrome-stats.com/d/website-blockereres)
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- [BlockSite](https://chrome-stats.com/d/blocksite) — 31,616 users, 3.71 / 5
- [Website Blocker](https://chrome-stats.com/d/website-blocker-by-sleekaddons) — 4 users
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- [Simple Site Blocker](https://chrome-stats.com/d/simple-site-blocker) — 23 users, 4.50 / 5
- [Block Websites](https://chrome-stats.com/d/block-websites) — 26 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/cisdem-web-blocker)