Referer Modifier by Airtower

Referer Modifier lets you configure rules to decide what HTTP Referer header Firefox should send to a certain site, if any. For each target domain, one of five actions can be configured:

• Keep: Do not modify the Referer
• Prune: Send only the origin part of the Referer (scheme, host, and port)
• Target: Send the origin of the target URL (scheme, host, and port) as Referer
• Remove: Send no Referer at all
• Replace: Replace the Referer with a configured value

You can configure default actions for requests originating from the same domain, and any other request not matching a domain rule. The "replace" and "target" actions will create a Referer header if necessary, the others only modify or remove existing ones. The configuration can be exported as and imported from JSON files.

Since version 0.8 the Javascript property document.referrer is modified to match.