Is there an env var like
http_proxy that will cause Firefox to make WebSocket connections through my proxy when "Use system proxy settings" is selected?
I'm running Linux and connecting to the internet through a corporate proxy. If I configure the proxy settings directly in Firefox then all of my browsing works perfectly including, specifically, https://web.whatsapp.com.
However, if I set the following environment variables from
export http_proxy='domain_user:password@http://ms_isa_server:8080' export https_proxy=$http_proxy export ftp_proxy=$http_proxy export no_proxy=...
and then select "Use system proxy settings" in Firefox then everything still works perfectly except for WebSocket connections. Specifically I get
08:48:23.027 Firefox can't establish a connection to the server at wss://w4.web.whatsapp.com/ws.1 a...
when trying to use https://web.whatsapp.com.