Firefox for Android Community Forum

Hi,

I have a custom site on my ISP's webspace that can be access via an https:// link. Firefox for Android (129.0.2) on my new phone (Samsung a35, Android 14) says that it's not secure, which means I frequently have to go though the not secure>advanced>accept risk process.

The problem is that this is literally the only browser instance I have that thinks it isn't secure. Chrome, on the same device, says it is, Firefox for Android thinks it is on two other devices. Firefox for Windows thinks it is. I can find no other browser on any device or platform that thinks there is any problem.

Any hep appreciated.

Hello,

The default browser in our company is Firefox. We have some internal websites now available from outside with mTLS.

This is working fine with Firefox on laptop (fedora), but I cannot make it work with Firefox on Android (which is crucial as the aim of this project is to have those apps securely available to all or employees from outside).

I installed the user certificate in the Android "User credentials" trust store, but Firefox (version 128.0.1) is not offering to use that certificate for mTLS, and just show a "Secure Connection Failed" error message.

How can we have Firefox on Android using the user CA to access those applications?

Thank you in advance for your feedback.

Best regards,

B.

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