I received a message via firewall / Mozilla that my laptop has a data leak. How can you plug the leak with little effort?

Be
3

Previously I had Opera as a browser.

Gu

Make a complete check with the Defender.

de

Only by update

bu

Can you post a screenshot, please? That would be great, then you can help you better.

Screenshots can be made from Windows 7 with the integrated snipping tool.

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