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I have a proxy add-on installed on my firefox and I want to use that proxy as a system-wide proxy.

I wonder if it is possible to send and receive system network traffic through firefox. I have already tried to set system proxy the same as what shows in firefox proxy configuration when the add-on is active, but it doesn't seem to work.

Any help is appreciated.

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  • Firefox is a browser, so it handles only stuff like HTTP and HTTPs traffic. I don't think it can handle other types of protocols, like DNS requests for instance. This is something that is done on completely different level of network stack Apr 7, 2017 at 16:04
  • @SergiyKolodyazhnyy Thanks for your explanation but are you sure about this? To set a system-wide proxy you just need to enter proxy for HTTP and HTTPS and FTP and Socks protocols, which my proxy add-on supports all of them. (They are set in firefox when the add-on is active) Apr 7, 2017 at 17:02
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    Pretty sure (although I'm no networking expert), because "whole traffic" involves lots of different protocols. System proxy for http will handle only http requests, but then what about VoIP ? what about DNS ? what about other services that use UDP protocol ? Apr 7, 2017 at 17:15
  • Ok I surrender :) It can't be done. I didn't know much about other protocols, thanks for clarifying. Apr 8, 2017 at 19:16

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This is not possible. Firefox can only handle traffic like HTTP/HTTPS, FTP, etc and the addon would only be able to use the proxy for traffic happening inside of Firefox.

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