Modify Headers for Windows

Name: Modify Headers
Rating: 4.9 (1 reviews)
Author: Gareth Hunt

By Gareth Hunt
Free
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The Download Now link will prompt a local download of the Firefox extension. To install the extension directly, open the file using your Firefox browser.

Developer’s Description

By Gareth Hunt

Add, edit, and filter HTTP request headers.

Modify Headers can modify the user agent string and add headers to spoof a mobile request (e.g. x-up-calling-line-id). Take a look at the help tab of the Modify Headers window. Some people think that 'user-agent' is a custom way of specifying the user agent string.