My issue was with kindle – or read dot amazon – in Librewolf. The partial solution i fpund was crearing a new profile with the same extensions intalled in the default profile, with the addition of Canvas, for enhance fingerprint protection. Then, in the Librewolf-specific settings disable their default fingerprint protection. For me is a partial solution because every time i want to read a kindle book from the browser, y need to launch the firefox profile wizard, then select the profile for read dot amazon, then login, and finally open the book.

Excuse me sir, i cant be more agree with you

No, my data is not tha big