Pytyvõha aty Firefox rehegua

On this site: https://www.orange.pl/twojekonto/zaloguj I can't force firefox to remember username (no problem with remembering password on next step). In older Firefox without WebEx there was addon which allowed to manipulate forms to prepare proper autocompletion data. This addon is not supported with WebEx anymore due to lack of proper functions. Instead Firefox Dev Team claims that mechanism built in current Firefox is enough for such tasks and mentioned addons are not needed. Seems it is wrong thinking.

I tried different approaches to save username for mentioned site but without success.

I have had it with Firefox playing cop. I really have. I have a site that I visit frequently but these past two updates have now broken my ability to sign into the site at all, even in private mode. All I get is the shield and human icons with the strike-through and the error message on the user name/password field that says: This Connection Is Not Secure. Logins Entered Here Could Be Compromised. Learn More.

I've hit the escape button, tried private windows, done everything I can including resetting which was my last resort and which I hate doing, there's no more whitelist, no way to bypass anything, this is totally unacceptable that I cannot get past this. Firefox is becoming more useless to me as they try to become more and more in control of what I can and cannot do. If there is no override to this, then I have to find a different browser because it's pretty useless to use one browser for some sites and another for other sites, don't you think? So if someone has a workaround for this problem, can you please tell me what it is?

As stated in subject line. FF 95.0.2

Nothing has changed except all fields are blank when I enter and the pw manager is also blank. My passwords and logins under TOOLS is still full.

What happened? I did NOT change any pw or history settings since yesterday - as a matter of fact, I did not change anything except to enter cookies exceptions.

Thank you.