The coroner for Molly Russell’s inquest said the opportunity to make social media safe must not “slip away”, as he voiced concerns about platforms.

On Thursday Andrew Walker told North London Coroner’s Court that social media had brought a risk to children into their homes and that the risk should be “kept away from children completely”.

Molly, from Harrow in north-west London, ended her life in November 2017 aged 14, prompting her family to campaign for better internet safety.

Over the course of her inquest, the court heard how the schoolgirl had viewed, engaged with and been recommended content relating to depression, self-harm and suicide on social media.

Mr Walker said: “It used to be the case that when a child came through the front door of their home it was to a place of safety.

“With the availability of the internet we brought into our homes a source of risk and we did so without appreciating the extent of that risk and if there is one benefit that can come from this inquest it must be to recognise that risk and take action to make sure that the risk that we have so embraced in our homes is kept away from children completely.”

The inquest, the coroner said, had “provided a rare opportunity” to see “the extent to which that risk has invaded all aspects of young people’s lives.”

Mr Walker outlined a range of concerns about platforms, which were: a lack of separation of children and adults on social media; age verification and the type of content available and recommended by algorithms to children; insufficient parental oversight for under 18s.

He told the court he would prepare a report aimed at preventing future deaths after he draws his final conclusions about the teenager’s death.

Representing Meta, Caoilfhionn Gallagher KC said the company “is ready to listen carefully to any concerns” while Pinterest’s lawyer, Andrew O’Connor KC, said the platform was “committed to make improvements in this area”.

The Russell family’s lawyer, Oliver Sanders KC, compared also the “unsafe practices” of the industrial revolution to the “digital revolution”, adding “it is children who are the victims”.

He also requested the coroner gives detailed findings of fact when he makes his conclusion on Friday, because there was a “particularly strong public interest” in the case.

Mr Sanders suggested to the coroner that he find that the material Molly viewed was “manifestly unsafe” and “on the balance of probabilities it caused or contributed to her death”.

He told the court content she viewed included a “litany of self-hate” which was “reflected in her notes almost word for word”, suggesting it “shaped her actions”.

The inquest continues.