Describe the feature and the current behavior/state.

The node-fetch module used to do requests doesn't support environment proxy configurations. Changing the agent used would allow, to properly use extensions behind a company firewall.

const agent = new https.Agent({ rejectUnauthorized: !prefs.unsafeHTTPS });

to something along the lines of

import { getProxyHttpAgent } from "proxy-http-agent";
...
const proxyUrl = process.env.HTTP_PROXY || process.env.http_proxy || `http://localhost:7070`;
const agent: http.Agent = getProxyHttpAgent({
  proxy: proxyUrl,
  rejectUnauthorized: !prefs.unsafeHTTPS,
});