# Private browsing modes and privacy limits > Live situation record from CLSTR: https://clstr.news/situations/private-browsing-features-and-limits > Updated: 2026-07-31T00:47:03.000Z. Sources: 5. Developments: 2. Initial coverage outlined how private or incognito windows in modern browsers delete local traces, clear cookies and history, and can aid testing, but emphasized that these modes do not conceal a user’s IP address, protect against malware, or prevent network monitoring. The guidance also advised broader privacy practices such as limiting personal data shared online and tightening account settings. Later reporting compared two popular implementations—Firefox’s private browsing window and Samsung Browser’s “secret mode.” Both were described as stopping local storage of history, cookies and form data, yet each still exposed users to ISP and network visibility. The comparison highlighted additional features: Firefox’s built‑in strict tracking protection, optional telemetry disablement, and the recommendation to use a VPN for anonymity; Samsung’s password/fingerprint lock, aggressive tracker blocker, screenshot allowance, and persistence after the app is closed. The evolution shows a shift from general privacy education toward detailed feature contrasts while reaffirming the same core limitations of private browsing. ## Timeline ### 2026-07-31: Firefox and Samsung Browser Private Browsing Features Compared Firefox private browsing blocks local storage of history and cookies but needs a VPN for anonymity; Samsung Browser’s secret mode hides history and cookies, offers password or fingerprint lock, and includes a强追 3 sources. https://clstr.news/cluster/firefox-and-samsung-browser-provide-private-browsing-features ### 2026-07-17: Online privacy guidance warns about private browsing limits Private browsing clears local data but does not hide activity from ISPs or networks; broader privacy steps like limiting shared info and tightening settings are essential. 2 sources. https://clstr.news/cluster/online-privacy-guidance-warns-about-private-browsing-limits --- Cite as: Private browsing modes and privacy limits. CLSTR, https://clstr.news/situations/private-browsing-features-and-limits