Scotiabank, RBC, CIBC, BMO and TD have pledged to stop purchasing ads on the site for the month.
Social media site gave the false impression privacy settings would give users control over who could see and access personal information.
Retaliation on France’s tax on American tech giants such as Google, Amazon and Facebook.
Elizabeth Warren, who in March proposed breaking up big tech companies, began running a text ad on Facebook to take aim at Zuckerberg.
Must meet highest standards” of financial regulation to prevent money laundering, threats to the banking and financial system.
Amounts to a 3% annual levy on French revenues exceeding US$28 million.
Digital currency, called Libra, scheduled to launch in the next six to 12 months.
He made his case at a gathering of civil society and government representatives from some 100 countries.
Facebook, Google and Microsoft agreed to combat disinformation and promote transparency.
Data privacy and security at Google and its tech rivals including Facebook are increasingly in the spotlight.
The social media giant is overhauling its flagship platform.
Regulator has been looking into whether Facebook broke its own 2011 agreement promising to protect user privacy.
The one-time Toronto mayoral candidate was fired by Rebel Media for taking part in a podcast on a neo-Nazi group’s website.
Critics have raised these issues to the highest levels at Facebook, says advocate.
The tech giant’s CEO said he isn’t currently worried about denting Facebook’s profits with the increased emphasis on privacy.