Hello, I had issue to verify the cert on android app for https://partners-enrichment.heytelecom.be. On Windows I didn't have the same issue. version 144.0.2 / build id 20251027123126 / target arm64-v8a armeabi-v7a x86_64 Device: Samsung S22 / One UI 7.0 / Android version 15 / version S901U1UES8FYI2 / Security patch level September 1, 2025 Error: Secure Connection Failed, because its certificate issuer is unknown, the certificate is self-signed, or the server is not sending the correct intermediate certificates. CertChain [https://crt.sh/?id=20894741063 RCA]: DigiCert Global Root G2 [https://crt.sh/?caid=185752 DCA]: DigiCert Global G2 TLS RSA SHA256 2020 CA1 [https://crt.sh/?id=20894741063 cert]: partners-enrichment.heytelecom.be 1) I couldn't check the cert from the gui as on windows. '''Shield in search bar / Connection not secure doesn't opened the cert'''. Is it expected? 2) I found this helppage: https://support.mozilla.org/en-US/kb/setting-certificate-authorities-firefox Unfortunately '''about:preferences isn't available on android''' (ref. https://www.reddit.com/r/firefox/comments/u593x0/how_to_access_to_aboutpreferences_on_android/) I see in about:certificate which is the correct RCA (I verified the pem file with the root). DigiCert Global Root G2 '''Where do I check the Intermediate CA's '''(DCA)? 3) When''' exporting the RCA''' it has been download as: digicert-global-root-g2.pem.txt Why the''' txt at the end?''' On Windows it downloads as digicert-global-root-g2.pem Kind regards,