appena apro firefox mi compare il messaggio di errore come da oggetto.
Prova a digitare nella barra degli indirizzi about:cache e poi posta i valori che ottieni.
Information about the Network Cache Storage Service
Private Anonymous In Browser Element
memory
Number of entries: 39
Maximum storage size: 29696 KiB
Storage in use: 573 KiB
Storage disk location: none, only stored in memory
List Cache Entries
disk
Number of entries: 44
Maximum storage size: 51200 KiB
Storage in use: 0 KiB
Storage disk location: /home/jls/.cache/mozilla/firefox/agiqqbn6.default-1517610331862/cache2
List Cache Entries
appcache
Number of entries: 0
Maximum storage size: 512000 KiB
Storage in use: 0 KiB
Storage disk location: /home/jls/.cache/mozilla/firefox/agiqqbn6.default-1517610331862/OfflineCache