Your browser remembers everywhere you’ve been. So does anyone who picks up your device after you — a partner, a coworker, a kid, a border agent. Here’s how to clean the trail.
Browser artifacts are the traces left by your web browsing:
- History: Sites you’ve visited
- Cookies: Files stored by websites to track your session, preferences, and identity across visits
- Cached files: Saved webpage assets stored for faster loading
- Autofill data: Saved names, addresses, and passwords
- Download history: A record of files you’ve downloaded
These can be accessed by anyone with physical access to your device, and some can be read by websites to track you across sessions.
Google Chrome
Desktop (Windows/macOS):
- Click the three-dot menu (top right) → Settings
- Privacy and Security → Clear browsing data
- Select Advanced tab
- Set time range to All time
- Check: Browsing history, Download history, Cookies, Cached images and files, Autofill form data, Site settings
- Click Clear data
Shortcut: Ctrl + Shift + Delete (Windows) / Cmd + Shift + Delete (Mac)
Mobile (iOS/Android):
- Tap three-dot menu → History → Clear browsing data
- Select time range and categories → Clear data
Chrome Incognito Mode:
- Open with
Ctrl + Shift + N(Windows) /Cmd + Shift + N(Mac) - Incognito does NOT make you anonymous — your ISP, employer, and visited websites can still see your traffic
- Incognito only prevents local storage of history, cookies, and form data on your device
Apple Safari
Desktop (macOS):
- Safari menu → Clear History
- Select time range → Clear History
For more control:
- Safari → Preferences → Privacy → Manage Website Data
- Remove All to clear all cookies and site data
Mobile (iPhone/iPad):
- Settings → Safari → Clear History and Website Data
- Confirm
Private Browsing (Safari):
- Tap Tabs icon → tap Private
- Prevents local storage but does not hide you from websites or your ISP
Mozilla Firefox
Desktop:
- Menu (hamburger icon) → Settings → Privacy & Security
- Scroll to Cookies and Site Data → Clear Data
- Also: History → Clear History → select time range and items → OK
Shortcut: Ctrl + Shift + Delete (Windows) / Cmd + Shift + Delete (Mac)
Advanced — Firefox Enhanced Tracking Protection:
- Settings → Privacy & Security → Enhanced Tracking Protection
- Set to Strict for maximum protection
- Enable DNS over HTTPS for additional privacy
Mobile:
- Tap three-dot menu → History → Clear browsing data → select and confirm
Private Browsing (Firefox):
- File → New Private Window or
Ctrl + Shift + P - Firefox’s private mode is more robust than Chrome’s Incognito — Enhanced Tracking Protection is active in private windows
Internet Explorer
(Legacy — Windows 10 and older)
Desktop:
- Gear icon → Internet Options → General tab
- Under Browsing History → Delete
- Check all relevant categories → Delete
- Enable “Delete browsing history on exit” for automatic clearing
InPrivate Browsing: Gear icon → Safety → InPrivate Browsing OR Ctrl + Shift + P
Microsoft Edge
Desktop:
- Three-dot menu → Settings → Privacy, search, and services
- Under Clear browsing data → Choose what to clear
- Select time range and categories → Clear now
Shortcut: Ctrl + Shift + Delete
Tracking Prevention:
- Settings → Privacy, search, and services → Tracking prevention
- Set to Strict for maximum protection
InPrivate Mode: Ctrl + Shift + N or three-dot menu → New InPrivate window
A Note on Private/Incognito Modes
Private browsing modes do NOT:
- Hide your IP address
- Prevent your ISP from seeing what sites you visit
- Hide your activity from employers on work networks
- Make you anonymous online
Private browsing modes DO:
- Prevent the browser from storing history, cookies, and form data locally
- Sign you out of all accounts when the window is closed
- Not inherit cookies from your regular browsing session
For anything approaching anonymity, use a VPN or the Tor Browser in addition to private mode. See the VPN section of this guide.
Firefox is the most privacy-respecting mainstream browser option — Enhanced Tracking Protection in Strict mode blocks significantly more tracking than Chrome’s default settings. If you’re going to use a browser all day, it matters which one you choose.