Browser privacy basics
Your browser can process many tasks locally. Check permissions, storage, extensions, and network requests to understand what a page can access.
Quick answer
A browser gives sites access to certain capabilities and stores site data in browser-managed areas. Permissions, cookies, extensions, and network requests also affect privacy; review them in browser settings and inspect requests when you need to understand a page’s behaviour. (W3C Permissions specification)
Permissions
Some web capabilities use browser-mediated permission decisions. Review access in the browser’s site settings and revoke permissions you no longer need. (W3C Permissions specification)
Cookies and browser storage
Cookies, local storage, and session storage can preserve preferences or session state. Web Storage is associated with an origin; extensions and browser profiles can operate in broader contexts. Clearing site data may sign you out or remove local preferences. (W3C Web Storage specification)
Network requests and extensions
A page can load scripts, fonts, and other assets from remote hosts. Extensions may observe or alter pages depending on their permissions. A privacy check is a snapshot of selected settings, not a complete audit of trackers or the browser. (Check selected browser settings)