Use RESET option in BROWSER TAB . this will clear cookies but cache will be still present. You can also make a profile and save it for further use. Let us know if this works for you.
@clepro Cookies live for a certain amount of time. The lifetime depends on the site. Somewhere they are deleted after 30 days, somewhere after 3 days. I think that is the reason for this.
In such cases in the scripts I check "is the user authorized". If not, then I carry out authorization by login and password.
@BasUser110 a mask is not a data type, but a url mask. The url does not have to contain a file extension. You need to look at which queries load this data and write a mask for them.