FPI stuff

user.js

@@ -1361,7 +1361,7 @@ user_pref("privacy.sanitize.timeSpan", 0);
  ** 1542309 - isolate top-level domain URLs when host is in the public suffix list (FF68+)
  ** 1506693 - isolate pdfjs range-based requests (FF68+)
  ** 1330467 - isolate site permissions (FF69+)
- ** 1534339 - isolate IPv6 (coming soon)
+ ** 1534339 - isolate IPv6 (FF73+)
 ***/
 user_pref("_user.js.parrot", "4000 syntax error: the parrot's pegged out");
 /* 4001: enable First Party Isolation [FF51+]