{"mdn_url":"https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/proxy/onRequest","source_file":"webextensions/api/proxy.json","support":{"chrome":{"version_added":false},"edge":{"version_added":false},"firefox":{"notes":"Before version 78, the <code>tabId</code> and <code>windowId</code> filter properties are ignored.","version_added":"60"},"firefox_android":{"version_added":"60"},"opera":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false}}}