What to use when uBlock Origin stops working on Chrome
uBlock Origin stopped working reliably on Chrome in late 2024 because Google changed how extensions can filter web traffic. The extension still installs, but it cannot block ads the way it used to. If you rely on ad blocking, you have working alternatives right now: uBlock Origin Lite (made by the same developer), AdGuard, Ghostery, and Brave Browser (which has built-in blocking and is not an extension at all).
Each one works differently under Chrome's new rules, and each one has trade-offs. Some block more aggressively but use more memory. Some are free but show you ads for their paid version. Some require you to switch browsers entirely. This guide walks you through what each one actually does, what it costs, and which one fits your situation.
Key Takeaways
- uBlock Origin Lite is the official replacement from the same developer and works on Chrome right now, but blocks fewer ads than the original version did.
- AdGuard and Ghostery are full-featured ad blockers that work on Chrome and block more aggressively, though both have paid versions that unlock extra features.
- Brave Browser replaces Chrome entirely and includes ad blocking built in, so you do not need a separate extension.
- No ad blocker on Chrome can match what uBlock Origin did before 2024, because Google deliberately restricted how extensions work.
- The choice depends on whether you want a quick fix (uBlock Origin Lite), maximum blocking (AdGuard or Ghostery), or a full browser switch (Brave).
uBlock Origin Lite: The official replacement
uBlock Origin Lite is made by the same developer as the original uBlock Origin and is the closest thing to a direct replacement. It installs on Chrome just like any other extension and works under Google's new restrictions. You can find it in the Chrome Web Store by searching "uBlock Origin Lite".
The trade-off is real: Lite blocks fewer ads than the original version because it cannot use the same filtering rules. It will stop most banner ads and video ads on common websites, but it will miss some ads that the full version would have caught. On sites like YouTube, Reddit, and news outlets, you will notice the difference. On lighter sites, you may not see much change.
Lite uses very little memory and does not slow Chrome down. If you want something simple that works right now and does not require learning a new browser, this is the fastest choice. It is free and has no paid tier.
AdGuard: More aggressive blocking with a paid option
AdGuard is a full ad blocker that works on Chrome and blocks more aggressively than uBlock Origin Lite. It stops banner ads, video ads, pop-ups, and tracking scripts. You can install the free version from the Chrome Web Store.
The free version works well for everyday browsing. AdGuard also sells a paid version ($3 to $5 per month depending on the plan) that adds features like blocking ads inside YouTube videos, filtering DNS requests at the network level, and managing your browsing across multiple devices. The free version does not include these, but it is not crippled — it blocks the same ads as the paid version on most websites.
AdGuard uses more memory than uBlock Origin Lite and can slow Chrome slightly on older computers. It also shows you notifications about its paid features, which some people find annoying. If you want stronger blocking than Lite and do not mind the memory use, this is a solid choice.
Ghostery: Privacy-focused blocking
Ghostery blocks ads and tracking scripts and emphasizes privacy. It shows you what trackers are running on each page and lets you block them individually. You can install it free from the Chrome Web Store.
Ghostery's free version blocks ads and trackers effectively. The paid version ($5 per month) adds a VPN, a tracker-blocking DNS service, and a password manager. Like AdGuard, the free version is not limited — it blocks the same ads as the paid tier on most sites. The paid features are extras, not requirements.
Ghostery is lighter on memory than AdGuard and faster than the original uBlock Origin. It works well if you care about seeing what is tracking you and want to block it. The interface is more visual than uBlock Origin Lite, which some people prefer and others find cluttered.
Brave Browser: Blocking built in, no extension needed
Brave is a web browser based on Chrome that includes ad blocking and tracker blocking built in. You do not install an extension — the blocking happens automatically. You download Brave from brave.com and use it instead of Chrome.
Brave blocks more ads than any Chrome extension can because it works at the browser level, not as an add-on. It is fast, uses less memory than Chrome with extensions, and includes a built-in VPN option (paid). The free version is fully functional and blocks ads on every site you visit.
The catch is that you have to switch browsers. Your bookmarks, passwords, and browsing history stay in Chrome unless you export them. Brave also has a rewards program that shows you ads in exchange for cryptocurrency, which you can turn off in settings. If you are willing to switch and want the strongest blocking available, Brave is the most powerful option.
Comparing memory use and speed
Ad blockers use computer memory, and that matters on older machines or if you have many tabs open. Here is how they compare:
| Blocker | Memory use | Speed impact | Setup time |
|---|---|---|---|
| uBlock Origin Lite | Very low | None | 2 minutes |
| AdGuard | Medium | Slight on older computers | 2 minutes |
| Ghostery | Low | None | 2 minutes |
| Brave Browser | Low | None (faster than Chrome) | 15 minutes |
If your computer is slow or you have limited memory, uBlock Origin Lite or Ghostery are the safest choices. Brave uses the least memory overall but requires switching browsers. AdGuard is the heaviest but still acceptable on modern computers.
Why Google changed the rules
In 2024, Google restricted how Chrome extensions can filter web traffic. The old system let extensions see every request your browser made and block any of them. The new system (called Manifest V3) limits what extensions can see and block.
Google says the change improves security and privacy. Ad blocker developers say it makes blocking weaker and benefits Google, which makes money from ads. Both things are true. The result is that no Chrome extension can block ads as effectively as uBlock Origin did before 2024.
This is why Brave Browser (which is not restricted by Google's rules) blocks more effectively than any Chrome extension. It is also why uBlock Origin Lite exists — the developer had to rebuild the extension to work within Google's new limits.
How to switch from uBlock Origin to a replacement
If you are currently using uBlock Origin on Chrome, here is how to move to a replacement:
- Open the Chrome Web Store and search for your chosen replacement (uBlock Origin Lite, AdGuard, or Ghostery).
- Click "Add to Chrome" and confirm the installation.
- The extension will appear in your toolbar. Click it to open settings if you want to customize blocking rules.
- You can leave uBlock Origin installed or remove it. It will not interfere with the new extension.
- Refresh any open tabs to see the new blocker in action.
If you choose Brave, the process is longer: download Brave from brave.com, run the installer, and let it import your bookmarks and passwords from Chrome. You can keep Chrome installed and switch between them.
Frequently Asked Questions
Will any of these block YouTube ads?
uBlock Origin Lite, Ghostery, and AdGuard (free version) will block some YouTube ads but not all. AdGuard's paid version blocks YouTube ads more reliably. Brave blocks YouTube ads effectively. If YouTube ad blocking is your main goal, Brave is the strongest choice.
Can I use multiple ad blockers at once?
You can install multiple extensions, but it is not recommended. They will compete with each other, use more memory, and may block the same ads twice, which slows your browser. Pick one and stick with it.
Do these blockers track me like uBlock Origin does not?
uBlock Origin Lite does not track you. AdGuard and Ghostery collect some data about your browsing to improve their filters, but both have privacy policies that explain what they collect. Brave does not track you in the same way Chrome does. If privacy is your main concern, uBlock Origin Lite or Brave are the safest choices.
Will websites break or show errors with these blockers?
Some websites detect ad blockers and refuse to load or show a message asking you to turn off blocking. This happens with all ad blockers equally. Most news sites, streaming services, and shopping sites do this. You can usually whitelist a site in your blocker's settings to let it load.
Is Brave safe to use as my main browser?
Brave is based on Chromium (the same code as Chrome) and is maintained by a legitimate company. It is safe to use as your main browser. Your data stays on your computer unless you sync it to Brave's servers, which you control in settings.