Using MS Windows 10, 64-bit, Firefox Portable 143.0.1, java 8 461 64-bit; Firefox is installed using a simple path: C:\Data\MyApps\FirefoxPortable\ and it is set as default browser. At some update after Firefox 139, I noticed that I am no longer able to log into several websites; After I click the log in button the Firefox windows clears and then nothing happens (I wait several minutes). Internet connection is OK because I can access some other websites. I have no problem logging in using my MS Windows Edge browser (that's how I logged in now). I have tried to disable all my security and privacy settings, tried to set those problem websites as excluded, etc. Nothing helps.
