User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:50.0) Gecko/20100101 Firefox/50.0 Build ID: 20161129173726 Steps to reproduce: The full response of an HTTP request is not available to the webextension framework. Expected results: It would be nice to optionally have a responseBody attribute accessible in the browser.webRequest.onCompleted listener.

The patch I sent has the responseBody in byte array format. It's the responsiblity of the webextension to, for example, gunzip content if it's zipped. I figured the burden shouldn't be on firefox to decode the data since asking for this will already add a burden to the browser.

If the content-encoding is gzip, this extension will inflate to plaintext. Otherwise, the responseBody will be shown as a byte array.