AlphaFonts Font Inspector does not collect, store or transmit any personal data or browsing data. All inspection happens locally in your browser, only after you start it, and only on the page you chose. The only information the extension saves is your own settings (theme, chosen properties and switches), stored locally with the browser's extension storage. Nothing is sent to AlphaFonts or to any third party. The extension makes no network requests of its own.