Not working with ip addresses (only with domains)

This Plugin is not working for me, firefox 82. Shows on several site. ERROR: Fingerprint for certificate not found. Certificate Chain of one router at home: https://pastebin.com/FLBWWFCB
certificate of vodafone.de: https://pastebin.com/VL53iUJL
Would really like to use this plugin, even if several site facebook and youtube are changing certificates every 2 month.