The Intolerable (or Coercive) Acts were a series of laws passed in the British parliament in 1774 intended to penalize the Massachusetts colonists for their defiance during the Boston Tea Party, which was triggered by changes to taxation laws and colonists' demands for "no taxation without representation". A fifth law, the Quebec Act -- which dealt with codifying into law the civil liberties Britain had gradually given to its French Canadian subjects in Quebec in the aftermath of the Conquest of New France -- was also considered one of the Intolerable Acts by the Thirteen Colonies.
You can read more about the situation in Britain's Canadian colonies at the dawn of the American Revolution in this thread and specifically Quebec by u/enygma9753.
The Canadian Maritime colonies, due to their proximity to New England, similar institutions like an assembly and merchant class, and the reality that many of its settlers were from America, did share some of the same concerns about their entitlement to their "rights as Englishmen" re: taxation, representation, etc. But, as the thread above outlines, the majority of them felt any disagreements could be addressed and resolved within the Empire -- and not by rebellion. They largely wanted to be left in peace. Washington and the Continental Congress saw the prospects of Nova Scotia rebelling and becoming the "14th colony" as less than promising.
In America, there was the belief even among the Patriot cause initially that George III had been led astray by his ministers and that the king could eventually be persuaded to accommodate New England's concerns. Only as the Revolution progressed did the general public opinion in America shift firmly against the king.
The 1774 Quebec Act, while not directly in reaction to the volatile situation in New England, struck at the heart of the Thirteen Colonies' grievances. The American colonists had hoped, even expected, that they too could enjoy a windfall of sorts as victors in the defeat of France as they had raised arms and shed blood in Britain's imperial struggle for the continent. This meant access to the interior for unrestricted settlement and the primacy of British laws and Protestant religion in the now-conquered lands of New France.
The Quebec Act not only denied them this, it expanded Quebec's frontiers westward into territory that the colonists had been eager to settle and gave their French Catholic enemies more equitable rights. The Thirteen Colonies were in large part anti-Catholic, virulently so, and saw the accommodation of French Catholics as establishing the "papist" church in British territory, which went against their Protestant beliefs.
In Quebec, the Act largely pacified a potentially hostile population by granting them generous property and language rights, the continuation of their civil code from the Ancien Regime and freedom of worship in the Catholic faith. This earned Britain the cooperation of Quebec and its acceptance of Crown authority, blunting any vague offers of liberty from Patriot agitators. Britain's refusal to permit a New England-style assembly in Quebec also alienated the British merchants and American settlers who had expected preferential treatment as English Protestants.
Instead they found a colony with strange laws, French subjects with rights almost equal to that of English ones and restrictions on their freedom to settle the frontiers west into the Great Lakes region and Ohio Valley.