What is Private Browsing?
A browser mode that doesn't save history, cookies, or form data after the session ends. Despite its name, private browsing only provides local privacy—it doesn't hide your activity from websites, ISPs, or network administrators.
Also known as: Incognito Mode, Private Window, InPrivate Browsing
Private browsing is widely misunderstood. It's useful for local privacy—keeping secrets from others who use your device—but it doesn't make you invisible online.
What Private Browsing DOES
Session Isolation
- Fresh start with no cookies
- No saved passwords used
- No autofill from previous sessions
No Local Traces
- History not saved
- Cookies deleted when window closes
- Form data not remembered
- Download history cleared (files remain)
Separate Sessions
- Log into multiple accounts
- Different identity per window
What Private Browsing DOESN'T Do
Doesn't Hide From
- Websites you visit (they still see you)
- Your ISP (sees all connections)
- Your employer/school (network monitoring)
- Government surveillance
- Your IP address remains visible
Doesn't Protect Against
- Browser fingerprinting
- Tracking via IP address
- Malware or keyloggers
- Shoulder surfing
Private Browsing by Browser
Chrome "Incognito"
- Purple icon
- Extensions disabled by default
- Google can still track (if signed in)
Firefox "Private Window"
- Purple mask icon
- Enhanced Tracking Protection
- Containers available separately
Safari "Private Browsing"
- Dark search bar
- Intelligent Tracking Prevention active
- Tabs are isolated
Brave "Private Window"
- Standard private mode
- Also offers "Private with Tor"
When to Use Private Browsing
Good Uses
- Shopping without price tracking
- Avoiding autofill embarrassment
- Checking how logged-out users see content
- Using public computers
Not Enough For
- Hiding from your ISP
- True anonymity
- Avoiding surveillance
- Protecting sensitive activities
Better Alternatives for Real Privacy
- Tor Browser: Actual anonymity
- VPN: Hide from ISP
- Separate browser profiles: Compartmentalization
- Firefox containers: Session isolation without private mode
Related Terms
Browser Fingerprinting
A tracking technique that collects information about your browser, device, and settings to create a unique identifier. Unlike cookies, fingerprints are nearly impossible to delete and can track you across websites without your knowledge or consent.
Cookie
A small piece of data stored in your web browser by websites you visit. While cookies enable useful features like staying logged in, they're also used extensively for tracking your browsing activity across the web for advertising and analytics purposes.
Virtual Private Network
A technology that creates a secure, encrypted connection over a less secure network, such as the public internet. VPNs mask your IP address, encrypt your internet traffic, and can make it appear as though you're browsing from a different location.
Have more questions?
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