Firefox is to start offering a premium subscription service.
The web browser made by software firm Mozilla will still remain free, but a new version with more advanced features is being developed with a release date of October.
Chris Beard, the CEO of Mozilla, told German website t3n.de that "there is no plan to charge money for things that are now free."
Among the features is a secure storage.
And Bear sees the premium service as a way to "build deeper customer relationships outside the search business."
Little else is known about the paid-for product.
Firefox was launched in 2002 and in 2017, the Mozilla Corporation had a net income of $89.9 million.