Moesif Origin & CORS Changer

The most popular and feature rich CORS tool on Chrome (over 100K weekly active users) is rebuilt for Firefox with more features. This plugin allows you to send cross-domain requests. You can also override Request Origin and CORS headers.

Moesif Origin & CORS Changer - A Firefox Add-On for Cross-Domain Requests

Moesif Origin & CORS Changer is a versatile Firefox add-on widely used by developers. It enables sending of cross-domain requests, overriding of Request Origin and CORS headers. It’s a Firefox adaptation of the widely popular Chrome extension and also allows selective enabling for white-listed domains, adding incredible utility to your browser for managing cross-origin resource sharing (CORS).

Add-on stats

Manifest V2
By: Moesif
Daily users: 888
-19
Rating: 3.33
(12)
Version: 0.4.7 (Last updated: 2020-08-15)
Version code: 5082165
Creation date: 2018-08-03
Weekly download count: 39
Firefox on Android: No
Permissions:
  • webRequest
  • <all_urls>
  • webRequestBlocking
Size: 469.88K
URLs: Website
Full description: See detailed description

Other platforms

Not available on Chrome
Not available on Android
Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Customizable for fixing cross-origin sharing issues
  • Easy to use
  • Good functionality as a CORS extension
Cons
  • Requires email to unlock advanced settings
  • Concerns over privacy with email requirement
  • Support issues on certain Firefox versions
Most mentioned
  • Email requirement to unlock settings
  • Customization options
  • Functionality for CORS
User reviews
by JoaCHIP, 2025-02-20


I agree with other recent reviewers. The screenshot shows a lot of fields, but none of them are enabled unless I "Unlock Advanced Settings" (which are in fact any settings) by providing my email. I know I could use a burner email for that, but meh, whatever. Cheers, bye.
by Rimas Kudelis, 2024-03-27
View all user reviews

Add-on safety

Risk impact

Moesif Origin & CORS Changer 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

Moesif Origin & CORS Changer has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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