Your browser stores cached files (saved copies of images, scripts, and page elements to load sites faster on repeat visits) and cookies (small files websites use to remember your login state, preferences, and session data). Both are genuinely useful most of the time, but when they become outdated or corrupted, they can cause a surprisingly wide range of problems — broken page layouts, login loops, outdated content, and general site weirdness that has nothing obviously to do with "cache."
Chrome
- Click the three dots (top right) → Settings
- Go to Privacy and security → Clear browsing data
- Choose the Basic tab
- Select a time range — "All time" for a thorough clear
- Check Cookies and other site data and Cached images and files (uncheck "Browsing history" if you want to keep that)
- Click Clear data
Shortcut: press Ctrl + Shift + Delete to jump straight to this screen.
Microsoft Edge
- Click the three dots → Settings
- Go to Privacy, search, and services
- Under "Clear browsing data," click Choose what to clear
- Select time range, check Cookies and Cached images/files
- Click Clear now
Same shortcut works: Ctrl + Shift + Delete.
Firefox
- Click the hamburger menu (top right) → Settings
- Go to Privacy & Security
- Scroll to Cookies and Site Data, click Clear Data
- Check both boxes (Cookies and Site Data; Cached Web Content) and confirm
What you lose vs. what you keep
- Cached files: safe to clear anytime — the only effect is that sites may load slightly slower the very next time you visit them, as the browser re-downloads what it would normally have saved.
- Cookies: clearing these will sign you out of most websites you're currently logged into, since login sessions are typically stored as cookies. You'll need to log back in to email, social media, banking sites, etc. afterward. Saved passwords (if using your browser's password manager) are not affected — only the active login sessions.
If you only want to clear data for one specific site
Rather than wiping everything, most browsers let you clear data for a single site:
- Click the lock/info icon in the address bar while on the site
- Look for "Cookies and site data" or "Site settings"
- From there you can clear data for just that one site, leaving your sessions on every other site untouched
When this fixes things, and when it doesn't
Clearing cache and cookies is genuinely effective for: pages showing outdated content, broken page layouts, login loops on a specific site, and general "this site is acting weird" situations. It generally won't help with: network-wide connectivity issues, problems specific to one extension, or issues that also happen in a completely different browser (which points to something outside the browser entirely, like your network or the website's own server).