Google fires "Unsecure browser" warning

[assopri]

Hi! Im trying to login in Youtube (Google) manually in WinForms ChromiumWebBrowser component). However Im getting the following warning (screened below) which I cannot bypass. Im using the same user agent as my main Chrome browser has: "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36". Any workarounds for forcing Google to recognize my browser component as secure browser?

[amaitland]

Starting in June 2019 Google will block logins from CEF based browsers to Google Services, this includes Gmail, Drive, Docs, see https://security.googleblog.com/2019/04/better-protection-against-man-in-middle.html?m=1 for further discussion see https://groups.google.com/a/chromium.org/d/msg/embedder-dev/STyM5ZNTHMM/POj1v_cqBgAJ

Google has blocked logins from all embedded browsers. This is not a flaw in CefSharp/CEF, it's that you can easily perform a man in the middle attack which is not something I can actually fix.

There are a few discussions on the topic already

• Cant login to google accounts #3506
• Maybe have solution for google login #3538
• https://magpcss.org/ceforum/viewtopic.php?f=10&t=16764
• https://magpcss.org/ceforum/viewtopic.php?f=10&t=16717

Any workarounds for forcing Google to recognize my browser component as secure browser?

Google haven't provided an official means to login to their service. Others embedded browsers are blocked as well including Microsofts new Chrome based embedded browser.

Others have tried switching the user agent with some success though no idea if that still actually works as this isn't something that I've tested myself.

[ukandrewc]

This works for me with GMail logon

CefSettings.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0"