Ninth Circuit Rejects Meta and TikTok Appeals, Allowing Social Media Addiction Lawsuits to Proceed

More than 3,000 social media addiction lawsuits filed against major technology firms can proceed toward trial, following a decisive ruling by the Ninth U.S. Circuit Court of Appeals. A three-judge panel on August 10 dismissed early appeals from Meta, TikTok, Google, and Snap, rejecting the companies’ attempts to use Section 230 of the Communications Decency Act as an absolute shield against litigation before trial, as reported by US Insider.

The consolidated federal lawsuits, overseen by U.S. District Judge Yvonne Gonzalez Rogers in Oakland, California, allege that tech giants engineered addictive algorithms, failed to implement safeguards for underage users, and withheld information concerning mental health risks. According to Fox Business, the appellate court ruled that the companies appealed prematurely because Section 230 provides a defense to liability rather than total immunity from being sued.

Court Draws Clear Line Between Liability Defense and Immunity

At the heart of the legal battle was whether Section 230 of the Communications Decency Act of 1996—which generally protects internet platforms from liability for content posted by users—also shields companies from allegations regarding platform design and operation. Meta and TikTok argued that the statute granted them broad immunity, entitling them to an immediate appeal before facing trial. The Ninth Circuit panel firmly disagreed with that interpretation.

Circuit Judge Jacqueline Nguyen authored the 24-page opinion in Personal Injury Plaintiffs v. Meta Platforms, Inc., noting that the statute “merely provides a defense to liability — not immunity from suit,” as detailed by US Insider. That distinction carries significant procedural consequences. Because the law offers a defense rather than blanket immunity, technology companies cannot stop litigation through an early appeal before a trial court reaches a final judgment. Consequently, the massive volume of cases must move forward through discovery, evidentiary motions, and potential full trials.

Consolidated Litigation Involves States, Municipalities, and Families

The litigation encompasses complaints brought by state attorneys general, municipal governments, school districts, and individual families under the multidistrict litigation docket titled In re Social Media Adolescent/Personal Injury Products Liability. Plaintiffs across the various complaints argue that platform features were intentionally designed to exploit adolescent psychology and maximize screen time.

Alongside the primary appellate decision, the Ninth Circuit panel denied an emergency motion filed by Meta to delay a separate trial brought by 29 state attorneys general, according to US Insider. That state-led trial features jury selection starting on August 13 and opening arguments scheduled for August 18. Attorneys representing school districts and individual plaintiffs noted in a statement covered by Fox Business that the legal milestone ensures the public will see what companies understood about product safety and youth mental health.

Recent Legal Precedents and Financial Exposure

The appellate ruling lands amid mounting legal and financial pressure for social media companies in parallel proceedings across the United States. In March 2026, a Los Angeles County Superior Court jury found Meta and Google negligent in the first bellwether trial to reach a verdict, awarding $6 million to a plaintiff who alleged she became addicted to Instagram and YouTube as a child, as reported by US Insider. Meanwhile, in New Mexico, a state court judge ordered Meta to pay $567 million into a teenage mental health fund and adopt youth safety measures after finding the company created a public nuisance, bringing Meta’s cumulative financial exposure in that state to approximately $950 million when combining penalties and court-ordered funds.

The Ninth Circuit did not determine whether Section 230 ultimately bars claims based strictly on platform design, leaving that central question for trial courts and subsequent appeals to address after full evidentiary records are established. Additional trials involving school district claims are scheduled to begin in February.