PARIS — France will vote in favor of the Palestinians’ request to heighten their profile at the United Nations, its foreign minister told Parliament on Tuesday, embracing a move that Israel and the United States oppose.

The support of France, a permanent member of the UN Security Council, is the most significant boost to date for the Palestinians’ hopes to be granted nonmember observer status and thus greater international recognition. Russia and China, two other permanent members, have also thrown their support behind the Palestinian bid.