more and more web sites not displayed

[DJDidans]

Firefox version 145.0.1 X64 on Windows 10.
I get more and more sites leaving a blank page instead of the site, for ex booking.com. Or don't work correctly, like vigousse.ch which logout as soon as I click on a picture... It works perfectly with Edge, I wonder why...

Most of the websites work correctly, including medias, youtube, etc...

Where is the problem ?

[GVentola]

In mid 2026, three sites I use started not working correctly anymore with Firefox when they had before.  Wheel of Fortune, The Daily Wire, & Chase.  With the latter, I can see my credit card information, but can't make a payment unless I call up the site on Microsoft Edge.  With the others, I was logged out, & when I tried to log back in, I just got an endless circling icon.