....
GRANT SELECT ON MON$ATTACHMENTS TO PUBLIC;
GRANT SELECT ON MON$CALL_STACK TO PUBLIC;
GRANT SELECT ON MON$CONTEXT_VARIABLES TO PUBLIC;
GRANT SELECT ON MON$DATABASE TO PUBLIC;
GRANT SELECT ON MON$IO_STATS TO PUBLIC;
GRANT SELECT ON MON$MEMORY_USAGE TO PUBLIC;
GRANT SELECT ON MON$RECORD_STATS TO PUBLIC;
GRANT SELECT ON MON$STATEMENTS TO PUBLIC;
GRANT SELECT ON MON$TABLE_STATS TO PUBLIC;
GRANT SELECT ON MON$TRANSACTIONS TO PUBLIC;
GRANT SELECT ON RDB$AUTH_MAPPING TO PUBLIC;
GRANT SELECT ON RDB$BACKUP_HISTORY TO PUBLIC;
GRANT SELECT ON RDB$CHARACTER_SETS TO PUBLIC;
GRANT SELECT ON RDB$CHECK_CONSTRAINTS TO PUBLIC;
GRANT SELECT ON RDB$COLLATIONS TO PUBLIC;
GRANT SELECT ON RDB$DATABASE TO PUBLIC;
GRANT SELECT ON RDB$DB_CREATORS TO PUBLIC;
....

GRANT USAGE ON D_BOOLEAN TO PUBLIC;
GRANT USAGE ON D_MONEY TO PUBLIC;
GRANT USAGE ON D_ZIPCODE TO PUBLIC;
GRANT USAGE ON RDB$10 TO PUBLIC;
GRANT USAGE ON RDB$11 TO PUBLIC;
GRANT USAGE ON RDB$12 TO PUBLIC;
GRANT USAGE ON RDB$13 TO PUBLIC;

GRANT USAGE ON DOMAIN D_BOOLEAN TO PUBLIC;

GRANT USAGE ON D_BOOLEAN TO PUBLIC;

GRANT USAGE ON EXCEPTION E_INVOICE_ALREADY_PAYED TO PROCEDURE SP_EDIT_INVOICE_LINE;
GRANT USAGE ON SEQUENCE GEN_PRODUCT_ID TO TRIGGER PRODUCT_BI;