The French president's office said Tuesday that Egyptian President Abdel-Fattah el-Sissi and Palestinian President Mahmoud Abbas both offered him support.
It was not immediately clear how the announcement, which was made at a Palestinian leadership meeting late on Tuesday, would be implemented.
The US plan would grant the Palestinians limited self-rule in parts of the occupied West Bank, while allowing Israel to annex all its settlements there and keep nearly all of east Jerusalem.
Defence Minister Avigdor Lieberman said that Palestinian President Mahmoud Abbas had lost his senses following his fiery speech against President Donald Trump.
Palestinian Prime Minister Rami Hamdallah called on Britain to apologize for the Balfour declaration that has aided the establishment of Israel on the lands of Palestine.