linux firefox can not display questions pages on stackexchange, stackoverflow, unix.se, askubuntu etc

On Linux (fedora 44) :

Since recently (haven't tried in several weeks, noticed it today):

(Linux) Firefox (latest version, 153.0.3 (64 bit) on fedora 44) : can not display most of the pages of stackexchange.com :

• unix.stackexchange.com : ok, but ko for all /questions/... urls.
• stackoverflow.com/ : gets redirected to https://stackoverflow.com/questions and is ko
• askubuntu.com : ok, but every /questiosn/... are ko
• etc.

For exemple if I come from google and go to that url (that has no "?..." in it) :

Different Linux distros sharing applications

In Firefox that url automagically changes to that one (with a long "?_cf_chl_tk=..." part in it) :

Different Linux distros sharing applications

and then the page automagically reloads to the first url.

And this cycles like that forever, several times per seconds.

Each time I see this in the F12 window:

Content-Security-Policy: The page’s settings blocked an inline script (script-src-elem) from being executed because it violates the following directive: “script-src 'nonce-sy1U18HNAVVQPvkEtWOuKH' 'unsafe-eval' challenges.cloudflare.com”. Consider using a hash ('sha256-aC78pJm/4CfJvTh4OSkSzk5tbqzxyf7QVqBBF9qkB9I=') or a nonce. ae2c6db1-2d13-4d73-9049-deb5859f9f86:19:51

The same thing occur on the other /questions/ page of all the stackexchange sites I tried ( apparently every stackexchange.com sites? apart if I can land on their frontpage (.com/) , everytime I get to the /questions/ part it is broken)

This happens even in Linux Firefox Troublehooting mode (with no extensions active)

No problem with Google Chrome.