He said this to reporters on the sidelines of the Verkhovna Rada of Ukraine, Censor.NET's correspondent reports.
He mentioned PPB MP Serhii Berezenko, who used to be part of former Kyiv mayor Chernovetskyi's team. This fact, Firsov says, "makes some young people in the PPB faction annoyed by Berezenko's presence there."
The deputy also said some MPs wish to leave the Petro Poroshenko Bloc faction. Firsov has not provided names, saying the number totals to about five or 10 persons.
According to Firsov, many members of the faction are clearly discontented with conduct of Prime Minister Arsenii Yatseniuk.
"There are no reforms, no development strategy, which could be clear and understandable for deputies and citizens," Firsov announced, noting that the budget -2016 draft has not yet been introduced in the parliament.