Meta has won an emergency ruling in the US to temporarily stop a former director of Facebook from promoting or further distributing copies of her memoir.

The book, Careless People by Sarah Wynn-Williams, who used to be the company’s global public policy director, includes a series of critical claims about what she witnessed during her seven years working at Facebook.

Facebook’s parent company, Meta, says the ruling – which orders her to stop promotions “to the extent within her control” – affirms that “the false and defamatory book should never have been published”.

The UK publisher Macmillan says it is “committed to upholding freedom of speech” and Ms Wynn-Williams’ “right to tell her story”.

It told the BBC that she had been due to do “extensive media” in the UK and internationally and “has been prevented from doing so”.

At a hearing on Wednesday at the American Arbitration Asso