# CORS Everywhere with referer support

> Bypass CORS restrictions by altering http responses.

Canonical page: [https://chrome-stats.com/d/cors-everywhere-referer](https://chrome-stats.com/d/cors-everywhere-referer)

## Overview

- **ID:** `cors-everywhere-referer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** caylee
- **Category:** web-development
- **Daily users:** 1
- **Version:** 18.11.13.2043dataport1
- **Last updated:** 2022-02-05
- **First published:** 2022-02-04
- **Size:** 19 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/cors-everywhere-referer/)

## Description

CORS Everywhere with Referer Support is a Firefox add-on that allows users to bypass Cross-Origin Resource Sharing (CORS) restrictions by modifying http responses. It provides support for referer headers, enabling users to access resources from different domains without encountering limitations imposed by CORS policies.

## Rankings

- #96,791 — Overall

## Permissions and access

### Permissions

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

## Safety

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

## Similar extensions and apps

- [CORS Unbound](https://chrome-stats.com/d/cors-unbound) — 20 users
- [CORSE](https://chrome-stats.com/d/corseverywhere) — 35 users
- [CORS Everywhere](https://chrome-stats.com/d/cors-everywhere) — 20,823 users, 4.13 / 5
- [CORS dev tool](https://chrome-stats.com/d/cors-dev-tool) — 13 users, 3.67 / 5
- [Corsify](https://chrome-stats.com/d/corsify) — 1 users, 3.00 / 5
- [CORS Unblock](https://chrome-stats.com/d/cors-unblock) — 6,345 users, 3.74 / 5
- [Corser](https://chrome-stats.com/d/corser) — 31 users, 3.00 / 5
- [CORS for Me](https://chrome-stats.com/d/cors-for-me) — 39 users
- [Restfox CORS Helper](https://chrome-stats.com/d/restfox-cors-helper) — 172 users, 5.00 / 5
- [Safe CORS](https://chrome-stats.com/d/safe-cors) — 11 users
- [CORS Unblock](https://chrome-stats.com/d/cors-unblock-enable-best) — 446 users
- [Medium Referer Bypass](https://chrome-stats.com/d/medium-referer-bypass) — 1 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/cors-everywhere-referer)