
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.

What is Moesif Origin & CORS Changer?
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).

Stats
- webRequest
- <all_urls>
- webRequestBlocking
Chrome-Stats Rank
Other platforms

Summary
This plugin allows you to send cross-domain requests. You can also override Request Origin and CORS headers.
This is the Firefox version of the Moesif CORS extension for Chrome, which is used by over 100,000 developers every week.
You can override the Request Origin header with this plugin and also have Access-Control-Allow-Origin set to *.
Also, you can override: Request Headers: Origin Response Headers: Access-Control-Allow-Origin, Access-Control-Allow-Methods, Access-Control-Allow-Headers, Access-Control-Allow-Credentials, Access-Control-Expose-Headers
You can also selectively enabling for white-listed domains based on target domain of the URL.
Guide on CORS: https://www.moesif.com/blog/technical/cors/Authoritative-Guide-to-CORS-Cross-Origin-Resource-Sharing-for-REST-APIs/
User reviews
Safety
Risk impact
Moesif Origin & CORS Changer is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Moesif Origin & CORS Changer if you trust the publisher.
Risk likelihood
Moesif Origin & CORS Changer has earned a fairly good reputation and likely can be trusted.