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i was using facebook until about 4 weeks ago. somehow it changed languages and while i was trying to put it back to english i was locked out.

this is part of the message i get

Firefox detected a potential security threat and did not continue to www.facebook.com because this website requires a secure connection.

www.facebook.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

The issue is most likely with the website, and there is nothing you can do to resolve it.

keep getting message [ sometjing dosen't look right ] and certificate revoked for my bank login it lets me go to the website but wont let me log into it. this is for blue federal credit union bank so i have to use a different browser for it, it works fine on other browser like edge .but not Firefox please help with this issue i like Firefox would hate to have to switch browsers but if this doesn't get resolved then ill have no choice too thank you

Starting with iOS 26.4, Firefox for iOS no longer connects to my internal HTTPS website. Safari connects with no problems.

I have a Microsoft Windows Server Active Directory network, and my internal web server is running on Windows Server 2019 Essentials, and uses a self-signed security certificate.

When I try to connect to the web server from my iPhone, all I get is a blank screen. Swiping down to refresh does nothing. I have no problems connecting to any other website with Firefox. As I mentioned earlier, Safari connects to my website with out issue.

Any suggestions?

Thanks.

I can't open my Wordpress website. I am using BlueHost portal. I get a message that says Something looks wrong and the following error code. SSL_ERROR_NO_CYPHER_OVERLAP