YouTube loading problems usually come from your browser cache, your internet connection, or a setting that's blocking the site

When YouTube won't load, the cause is almost always one of four things: your browser is storing old data that conflicts with the new site, your internet connection is too slow or unstable, a browser extension is interfering, or JavaScript is turned off. You can test and fix each one in a few minutes without technical knowledge. Most people solve the problem in their first attempt.

The fastest way to start is to open YouTube in a different browser — Chrome, Firefox, Safari, or Edge — on the same device. If it loads there, the problem is in your main browser's settings or extensions, not your internet connection. If it fails in every browser, the problem is your connection or your device's network settings.

Key Takeaways

  • Clear your browser's cache and cookies first, since old stored data is the most common cause of YouTube loading failures.
  • Test YouTube in a different browser to tell whether the problem is your main browser or your internet connection.
  • Turn off browser extensions one at a time to find which one is blocking YouTube, then uninstall it or add YouTube to its whitelist.
  • Check that JavaScript is enabled in your browser settings, since YouTube requires it to run.
  • Restart your modem and router if YouTube fails in every browser, since connection problems can prevent the site from loading.

Clear your browser cache and cookies

Your browser stores copies of websites you visit so they load faster next time. Sometimes this stored data becomes corrupted or outdated, and YouTube can't load the fresh version. Clearing this cache usually fixes the problem in minutes.

In Chrome, click the three-line menu in the top right, select Settings, then go to Privacy and Security. Click Clear Browsing Data. Make sure the time range is set to All Time, check both Cookies and Cached Images and Files, then click Clear Data. Close Chrome completely and reopen it, then try YouTube again.

In Firefox, click the menu button (three horizontal lines) in the top right, select Settings, then Privacy and Security. Under Cookies and Site Data, click Clear Data. Check both Cookies and Site Data and Cached Web Content, then click Clear. Close Firefox and reopen it.

In Safari, click Safari in the menu bar, select Settings, go to Privacy, and click Manage Website Data. Select all entries and click Remove. Then go to the Advanced tab and make sure Enable JavaScript is checked.

Test YouTube in a different browser

Open YouTube in a browser you don't normally use — if you usually use Chrome, try Firefox or Edge. If YouTube loads when ready in the other browser, your main browser has a setting or extension causing the problem. If YouTube fails in every browser you try, the problem is your internet connection or device.

This test takes two minutes and tells you exactly where to look next. Don't skip it, because it saves you time troubleshooting the wrong thing.

Disable browser extensions one at a time

Extensions are small programs that add features to your browser — ad blockers, password managers, privacy tools. Some extensions block YouTube by mistake, or they conflict with how YouTube's player works. You can turn them off temporarily to find the culprit.

In Chrome, click the puzzle piece icon in the top right (or the three-line menu, then More Tools, then Extensions). You'll see a list of all your extensions. Click the toggle next to each one to turn it off, then reload YouTube. When YouTube loads, you've found the problem extension. You can then uninstall it, or look for a settings option in that extension to whitelist YouTube.

In Firefox, click the menu button, select Add-ons and Extensions, then Extensions. Click the toggle next to each extension to turn it off, reload YouTube, and test. When it works, you've found the one causing trouble.

In Safari, click Safari in the menu bar, select Settings, go to Extensions, and uncheck each extension one at a time to test.

Check that JavaScript is enabled

YouTube requires JavaScript — a programming language that runs inside your browser — to display videos and controls. If JavaScript is turned off, YouTube will load but won't play anything or let you interact with it.

In Chrome, click the three-line menu, go to Settings, then Privacy and Security, then Site Settings. Scroll down and click JavaScript. Make sure it's set to Allowed (the default). Close Settings and reload YouTube.

In Firefox, type about:config in the address bar and press Enter. Click Accept the Risk and Continue. Search for javascript.enabled. If it shows false, click the toggle to change it to true. Reload YouTube.

In Safari, click Safari in the menu bar, select Settings, go to the Security tab, and make sure Enable JavaScript is checked.

Restart your modem and router

If YouTube fails in every browser and JavaScript is on, your internet connection may be the problem. Your modem and router can get stuck in a state where they can't reach YouTube's servers, even though other websites work fine.

Unplug your modem (the device your internet provider gave you) for 30 seconds, then plug it back in. Wait two minutes for it to fully restart. Then unplug your router (the wireless device) for 30 seconds and plug it back in. Wait another two minutes. Try YouTube again.

If YouTube still won't load, restart your device completely — shut it down fully, wait 30 seconds, and turn it back on. This clears your device's network settings and often fixes connection problems that affect only certain websites.

Check YouTube's status and your internet speed

Occasionally YouTube has an outage that affects all users in a region. You can check whether YouTube is down by visiting downdetector.com and searching for YouTube. If thousands of people are reporting problems at the same time, YouTube's servers may be the issue, and you'll need to wait for the company to fix it.

You can also test your internet speed by visiting speedtest.net. YouTube needs at least 1 megabit per second to stream video in standard quality, and 5 megabits per second for HD. If your speed is much lower, your internet connection is too slow, and you may need to contact your internet provider or move closer to your router.

If your speed is normal and YouTube still won't load, try the fixes above again, starting with clearing your cache. Most YouTube loading problems are solved by one of those steps.

Frequently Asked Questions

Why does YouTube load in Chrome but not Firefox?

Each browser stores its own cache and cookies, and each has its own extensions. The problem is in Firefox's settings or extensions, not your internet. Clear Firefox's cache first, then disable Firefox extensions one at a time to find which one is blocking YouTube.

YouTube loads but videos won't play — what's different?

If the YouTube page opens but videos don't play, JavaScript is likely off or a browser extension is blocking the video player. Check that JavaScript is enabled in your browser settings, then disable extensions one at a time and reload the page to test.

Should I uninstall my browser and reinstall it?

No. Uninstalling and reinstalling your browser is a last resort that rarely helps. Clearing your cache, disabling extensions, and checking JavaScript settings solve almost every YouTube loading problem. Try those first.

What if YouTube loads on my phone but not my computer?

The problem is your computer's browser or network settings, not YouTube or your internet provider. Your phone uses a different browser and connects to the same internet, so the issue is specific to your computer. Clear your computer browser's cache, disable extensions, and check JavaScript is on.

Does restarting my modem really help?

Yes, but only if YouTube fails in every browser on your device. Restarting your modem clears temporary connection problems that can prevent your device from reaching YouTube's servers. It takes three minutes and fixes connection issues that other websites might not show.