Meta is abandoning the use of independent fact checkers on Facebook and Instagram, replacing them with X-style "community notes" where commenting on the accuracy of posts is left to users.
In a video posted alongside a blog post by the company on Tuesday, chief executive Mark Zuckerberg said third-party moderators were "too politically biased" and it was "time to get back to our roots around free expression".
Joel Kaplan, who is replacing Sir Nick Clegg as Meta's head of global affairs, wrote that the company's reliance on independent moderators was "well-intentioned" but had too often resulted in the censoring of users.
However, campaigners against hate speech online have reacted with dismay - and suggested the change is really motivated by getting on the right side of Donald Trump.
"Zuckerberg's announcement is a blatant attempt to cozy up to the incoming Trump administration – with harmful implications", said Ava Lee, from Global Witness, a campaign group which describes itself as seeking to hold big tech to account.
"Claiming to avoid "censorship" is a political move to avoid taking responsibility for hate and disinformation that platforms encourage and facilitate," she added.
