Enable cookies in Safari settings in three steps
Open Settings on your iPhone, scroll down and tap Safari, then tap Privacy & Security. Look for "Block All Cookies" — if the toggle is on (green), tap it to turn it off. Cookies are now enabled. If the toggle is already off, cookies are already on.
That's the complete process. Most iPhones ship with cookies enabled by default, so you may find the setting is already where you need it. The Privacy & Security menu also shows you other tracking options if you want to adjust those separately.
Key Takeaways
- Cookies are enabled by default on iPhone Safari, so you only need to change this setting if a website told you to turn them on.
- The "Block All Cookies" toggle in Settings > Safari > Privacy & Security controls whether Safari accepts cookies from websites.
- Turning off "Block All Cookies" does not mean Safari accepts every tracking request — other privacy settings still apply.
- Some websites will not work properly without cookies, but you can enable them globally or clear them regularly to balance function and privacy.
Why websites ask you to enable cookies
Cookies are small files that websites store on your phone to remember information about you — your login status, items in a shopping cart, your language preference, or what you've browsed. Without cookies, many websites have to ask you to log in again every time you visit, or they can't remember your settings.
When a website tells you "cookies are disabled," it usually means Safari's "Block All Cookies" setting is on. The website needs cookies to function the way it's designed — not necessarily because it's trying to track you, but because cookies are how modern websites work at all.
The difference between blocking all cookies and other privacy settings
Safari has multiple privacy controls, and they do different things. "Block All Cookies" stops websites from storing any cookies on your phone. But Safari also has "Prevent Cross-Site Tracking" (usually on by default), which stops advertisers from following you across different websites even if cookies are enabled.
If you turn off "Block All Cookies" but leave "Prevent Cross-Site Tracking" on, websites can store cookies to remember you, but advertisers have a harder time building a profile of your browsing across the web. You can enable cookies for websites to work properly while still limiting how much tracking happens.
When to clear cookies after enabling them
Once cookies are enabled, Safari stores them until you clear them. If you want to remove old cookies without turning off the feature entirely, go to Settings > Safari > Clear History and Website Data. Choose how far back to clear (last hour, today, last week, or all time), then tap "Clear History and Data."
Clearing cookies logs you out of most websites and removes saved preferences, but it doesn't turn off cookies — new ones will be stored the next time you visit a site. This is useful if you want a fresh start without changing your privacy settings.
What happens if you keep cookies blocked
Some websites will not load properly or will show you a message asking you to enable cookies. Shopping sites may not let you add items to a cart, email services may log you out repeatedly, and some news sites may not remember your reading preferences. These aren't security problems — they're just how the website was built.
If you encounter a website that doesn't work, enabling cookies is usually the first thing to try. You don't have to enable them permanently; you can turn them back off after you're done using that site, though you'll have to log in again next time.
Cookies versus other tracking on Safari
Cookies are one way websites track you, but not the only way. Safari also blocks other tracking methods like fingerprinting (where a website identifies you based on your device settings) and some ad trackers. Enabling cookies doesn't turn off these other protections.
If you're concerned about privacy, enabling cookies to make websites work doesn't mean you've lost all protection. Safari's other privacy features still run in the background. You're making a choice to let websites remember you, not a choice to be tracked everywhere.
Frequently Asked Questions
Will enabling cookies slow down my iPhone?
No. Cookies are tiny text files, usually just a few kilobytes each. Even if you have hundreds of cookies stored, they won't noticeably affect your phone's speed or storage. Safari manages them automatically.
Can I enable cookies for some websites but not others?
Not with a built-in Safari setting. The "Block All Cookies" toggle is all-or-nothing. If you need fine-grained control, you'd have to use a different browser like Firefox or Chrome, which have per-site cookie settings. For most people, the global toggle is enough.
Is it safe to enable cookies?
Cookies themselves are not dangerous — they're just text files. The risk is that advertisers use cookies to track your browsing across websites. Safari's "Prevent Cross-Site Tracking" feature limits this. If you're on a public WiFi network, that's a bigger security concern than cookies, and it's unrelated to this setting.
What if a website still doesn't work after I enable cookies?
Try clearing Safari's cache and cookies (Settings > Safari > Clear History and Website Data), then reload the website. If it still doesn't work, the problem is likely something else — a browser compatibility issue, an outdated app, or a problem with the website itself. Contact the website's support if the issue persists.