CORS Unblock

No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled

CORS Unblock is available to install from Firefox Browser Add-ons and for download from this page. It has 7,190 active users The latest version is 0.3.8, and it was published 10 months ago.

Install from Firefox Browser Add-ons
View source code
Total download count: 1 (Only count downloads from Firefox-Stats)

All available versions

You can find the current and older versions of CORS Unblock here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

Upgrade to download older versions
 2 versions available for download.

Install XPI file

  1. Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  1. Download the CORS Unblock ZIP file
  2. In Firefox browser, go to about:addons to open Add-ons Manager
  3. Click on , then select Install Add-on From File
  4. Select the CORS Unblock ZIP file from step 1. CORS Unblock is now installed on your browser.