As of Thursday morning, the only good news for Facebook is that plunging stock price appeared to have found a floor.
"You guys should look in the mirror at yourselves and hear how you sound", a person with the handle Johanna wrote on Downdetector around 0745 GMT.
People took to Twitter to complain about the downtime.
The outage came amid a period of turmoil for Facebook, which appeared to intensify Thursday with the announcement of the departure of two senior executives at the social network.
In some cases the apps could be accessed but would not load posts or handle missives. The platform experienced one of its greatest outage in history Wednesday when users on the east and west coast and the southeast, as well as Europe, reported issues with uploading photos or posts or the inability to log into the site at all.
"Yesterday, as a result of a server configuration change, many people had trouble accessing our apps and services", the company said in a tweet. We have resolved the issues, and our systems have been recovering over the last few hours.More news: Bettors backing Browns for SB after OBJ trade
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The Menlo Park, California-based company, which gets a vast majority of its revenue from advertising, told Bloomberg that it was still investigating the overall impact "including the possibility of refunds for advertisers".
Distributed denial of service cyber strikes involve hackers overwhelming websites with tidal waves of simultaneous requests, typically using armies of computers infected with malicious code.
As of March 14, Facebook has not issued a statement as to the cause of the outage.
With the New York Times reporting that Facebook is under criminal investigation for actions related to data sharing with third parties, Wednesday was always going to be a bad day for the social network. "I'm trying to communicate with my team in NY".
Regulators, investigators and elected officials in the United States and elsewhere in the world have already been digging into the data sharing practices of Facebook.