Shares of the social network finished up 4 per cent at $355.64 at the close of trading on Monday, giving the company a market cap of just over $1 trillion.
Popular pages like Doctors without Borders, St. Vincent's Health, the Bureau of Meteorology and Department of Fire and Emergency Services have been blocked.
On Friday, many Facebook users from the US and Europe reported that they were automatically logged out in the middle of sessions and failed to access their accounts.