Blocking all cookies will break your browsing experience

Someone clicks a button in their browser settings. They block all cookies. For a second, they feel like they’ve won some war against the surveillance state and that the internet is finally private again; it makes sense why they do it. For years, every warning they’ve read has called cookies spying tools.

The fear of the invisible#

The idea took hold when people noticed companies tracking their web activity without permission; concern was a natural reaction. You’d look at some boots in one shop and then see ads for those same boots on every other site you visited for a week. It felt like a salesman who wouldn’t leave you alone, and since this happened in the background, it looked like spyware. The fix seemed easy. Just kill the tool causing the problem.

The memory of a server#

Cookies aren’t software or some secret program. They’re just tiny bits of text. A website loads and tells your browser to save that text, then the browser hands it back the next time you visit. Servers can’t naturally remember who you are. Every single page request looks like a brand new interaction from a total stranger.

Think of cookies as a memory aid for sessions; these sessions are the temporary links that keep you signed in while you move around a site. Without them, you’d have to type your password every time you clicked a link. Why would anyone do that? Blocking all cookies makes the internet feel like a goldfish bowl. You log into your email and click your inbox only for the site to ask for your login again because it forgot you. The cycle just keeps going until you give up and decide to go back to writing letters by hand.

A matter of origin#

The issue isn’t how cookies work. It’s who’s putting them there. You have to distinguish between first party and third party cookies (a big difference). A first party cookie comes from the site you’re actually visiting. These are mostly useful. They remember your language settings or what you put in a shopping cart.

Third party cookies come from a different domain, usually some ad network. That’s where the tracking happens. If you visit ten sites that use the same ad network, that company can drop one cookie on your browser and recognize you at every single stop. It builds a profile that feels like spyware.

Lawmakers and browser developers have finally noticed; european privacy laws now force sites to get consent before they use tracking cookies. The browsers changed too. Many of them block third party cookies by default but let the first party ones work. That way a site remembers you’re logged in without letting an ad network follow you around the web.

Is the goal to kill the cookie? No. It’s just to limit who gets to use it, and blocking everything doesn’t really stop the surveillance state, it just breaks the basic functions of the modern web. You end up with a lot of frustration for very little privacy gain.

If you want to protect your privacy without breaking the internet, look at your browser settings, and make sure “Block third-party cookies” is picked, but leave the first party ones alone. Clear your cache and cookies once a month (it resets the stored data).