Example test URL: https://www.wizzair.com/en-gb/booking/select-flight/LTN/VIE/2025-12-12/null/1/0/0/null Librewolf: “Critical error”, “No flights on this date.” Firefox: showing the flight prices

The network tools shows that a couple requests fail with 429 code while returning 200 codes on Firefox.

Is there some way to fix it?