A Jewish community centre in Montreal was firebombed in the early hours of Monday — an act decried by Prime Minister Justin Trudeau as “vile and hateful” amid flaring tensions in Canada over the Israel-Hamas war. A Molotov cocktail was thrown through the building’s front door shortly after midnight, coming on the heels of several shootings and another firebombing targeting Jewish schools and institutions in Canada’s second-largest city. The weapon smashed through the glass door and exploded in a hallway, burning part of a carpet. “No one was present and minimal damage occurred,” the head of Montreal’s Jewish Community Council,...