![](https://addons.mozilla.org/user-media/addon_icons/842/842870-64.png?modified=b3f90c77)
mHeaderControl
![](https://addons.mozilla.org/user-media/previews/thumbs/208/208037.jpg?modified=1622132767)
What is mHeaderControl?
Add-on stats
- tabs
- storage
- webNavigation
- webRequest
- webRequestBlocking
- <all_urls>
Ranking
Other platforms
Add-on summary
mHeaderControl is a Firefox Plugin which provides a bunch of features to manipulates HTTP headers of requests.
Individual features can be turned on and off globally or on a per page basis.
Block Cookie SameSite Removes all cookie headers from requests to resources with the same domain as the site.
Block Cookie 3rd-Party Removes all cookie headers from requests to resources with a different domain as the site. (Unfortunately, this feature is currently broken and blocks other cookies as well in certain circumstances.)
Allow CORS Adds the "Access-Control-Allow-Origin" as well as "Access-Control-Allow-Credentials" header to all responses.
User reviews
Add-on safety
Risk impact
mHeaderControl 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 mHeaderControl if you trust the publisher.
Risk likelihood
mHeaderControl is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.