Facebook has shown its willingness to fight charges of privacy violations. On Thursday, Facebook disputed findings by Canada’s privacy commissioners in an investigation into how Cambridge Analytica, a British political consulting firm that worked for the Trump presidential campaign, gained access to information about Facebook users.

The privacy commissioner of Canada and the information and privacy commissioner for British Columbia said Facebook violated national and local laws in allowing third parties access to private user information through “superficial and ineffective safeguards and consent mechanisms.”

The Canadian regulators, who have limited power to force Facebook’s compliance, plan to take the company to a Canadian federal court. The court, which focuses on regulatory issues and lawsuits against the government, may impose fines.

The revelations of data misuse by Cambridge Analytica also set off the investigation at the F.T.C. But regulators expanded it to include other privacy violations by Facebook that were reported, almost monthly, according to a person familiar with the investigation.

Among conditions that are being discussed by the F.T.C. are stronger monitoring of Facebook’s privacy practices and greater restraints on how the company shares data with third parties, according to the two people familiar with the discussions.

But the conditions are not finalized and could change, as could the amount of the fine, which Facebook said was a projection. The agency and Facebook could decide to go to court over charges if an agreement is not reached.

The two sides were close to concluding settlement talks earlier this month, according to a person familiar with the talks. The company’s guidance to investors of the financial penalty also indicated a conclusion is near. But disagreements over final terms of a settlement have complicated the conclusion of the F.T.C.’s one-year investigation.