International FB class action lawsuit (those served by FB Ireland per FAQ).

https:// www.fbclaim.com

Class action lawsuit (USA, not sure that this would include Canadians)

https:// www.hbsslaw.com/cases/facebook-users-privacy

https:// www.cnbc.com/2018/03/23/business-wire-scottscott-attorneys-at-law-llp-files-class-action-lawsuit-against-facebook-inc-fb-on-behalf-of-investors.html

http:// www.coinfox.info/news/9226-switzerland-kazakhstan-and-armenia-join-class-action-lawsuit-against-facebook-and-twitter