Heads up for those who rely on Mozilla's Persona sign-in system: it's going away.

On Nov. 30, Persona.org and all related domains will be taken offline, Mozilla announced on Tuesday.

"Due to low, declining usage, we are reallocating the project's dedicated, ongoing resources and will shut down the persona.org services that we run," Mozilla said. After the shutdown, Mozilla plans to destroy all user data stored on the persona.org servers, so you don't have to worry about your info winding up in the hands of some third party.

Mozilla launched Persona in 2012 to make it easier to sign in to websites with existing email addresses from services like Gmail or Yahoo.

Last year, Mozilla transitioned ownership of the project to its community, reallocating Persona's full-time developers to other projects. At the time, Mozilla said its staff would continue to resolve critical bugs, service disruptions, and security issues but that support is coming to an end.

The shutdown may cause a bit of a headache for those who run websites that rely on Persona, who will need to implement an alternative login solution for users before the shutdown. Mozilla has assembled a wiki page with information and guidelines for migration.

"We strongly encourage affected teams to openly discuss and blog about their migrations on the dev-identity mailing list so that others can learn from their experience," Mozilla said.

The nonprofit will continue to support Persona "at a maintenance level" until the shutdown date, meaning it will remedy any security issues that crop up but will not develop or deploy any new features.

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