![]() When direct connection / auto / system proxy settings are set - firefox displays proxy error.īoth of these issues can be temporary avoided by combination of addon and firefox settings: And this proxy fallback exists only when manual proxy configuration is set. This issue can be dangerous for the privacy in containers, because if container proxy will be temporary down all requests will go through default proxy. When firefox can't connect to a proxy server specified in the addon (firefox tries a few times), it fallback request to the default proxy server if it set in firefox settings. Second issue - possible IP leak of default socks proxy (set in proxy manual configuration of firefox). First issue looks like firefox ignores proxyDNS: true option in proxy webextension API with some settings. No DNS leaks with DNS over Socks enabled and manual proxy configuration with any address/port entered in socks proxy field. All add-ons are affected by this issues.įirst issue - DNS leaks with socks proxies set in addon settings and when global firefox setting DNS over Socks is disabled or direct connection / auto / system proxy settings are set. We found a 2 issues with proxifying requests by add-ons. And during tests of my add-on and with help of one guy who helped with tests. ![]() ![]() I develop own proxy-per-container add-on.
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