# RegEx Blocklist

> Filter HTTP requests with Regular Expressions

Canonical page: [https://chrome-stats.com/d/regex-blocklist](https://chrome-stats.com/d/regex-blocklist)

## Overview

- **ID:** `regex-blocklist`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Aaron Erhardt
- **Category:** privacy-security,other
- **Daily users:** 20
- **Rating:** 4.60 / 5 (5 ratings)
- **Version:** 2.0
- **Last updated:** 2020-12-01
- **First published:** 2020-05-29
- **Size:** 96 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/regex-blocklist/)
- **Website:** [https://github.com/AaronErhardt/Regex-Blocklist](https://github.com/AaronErhardt/Regex-Blocklist)

## Description

RegEx Blocklist is a Firefox add-on that enables easy blocking of URLs using Regular Expressions. It not only stops pages from loading but also blocks images, scripts, style sheets, fonts, and more. With support for RegEx flags, an additional allowlist, easy testing of the blocklist, high performance, low RAM usage, and automatic dark mode, this open-source add-on provides a powerful solution for filtering HTTP requests.

## Rankings

- #24,198 — Overall

## Permissions and access

### Permissions

- `webRequest`
- `<all_urls>`
- `storage`
- `webRequestBlocking`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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).

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Source: [Chrome-Stats](https://chrome-stats.com/d/regex-blocklist)