Can you still use uBlock Origin on Chrome?

Does the original uBlock Origin still work on Chrome today?

No. The original uBlock Origin no longer works on current versions of Google Chrome, and the old workarounds have reached the end of the road.

Google's Manifest V2 phase-out is now complete. According to Chrome's own extension timeline, Chrome 138 disabled Manifest V2 extensions for regular users and removed the option to turn them back on. Chrome 139 then removed the remaining enterprise policy that could keep them running.

That directly affects uBlock Origin because the full extension uses Manifest V2. Once Chrome removed that extension architecture, keeping an old copy of uBO installed stopped being enough.

Google has since gone one step further. All remaining Manifest V2 extensions were removed from the Chrome Web Store, so users can no longer reinstall them from there either.

For an up-to-date Chrome user, classic uBlock Origin is finished.

Chrome change	What happened to uBlock Origin
Chrome 138	Manifest V2 disabled for normal users
Chrome 139	Remaining enterprise exception removed
Chrome Web Store phase-out	Remaining Manifest V2 extensions removed
Chrome today	Full uBlock Origin cannot run normally

Did Google actually ban uBlock Origin from Chrome?

No. Google removed Manifest V2 from Chrome, and uBlock Origin became collateral damage because some of its most important features depended on that older extension system.

The difference is easy to see from what Chrome still allows. Adblock Plus, AdGuard, uBlock Origin Lite and other blockers continue to operate on Chrome using Manifest V3.

Google says Manifest V3 improves extension security, privacy and performance by reducing how much code extensions can run and moving more network filtering into browser-controlled APIs.

For uBlock Origin, the trade-off is painful. Full uBO was unusually powerful because it could react to web requests and page behavior with much more flexibility than Chrome's newer declarative filtering system allows.

Chrome still permits ad blocking. What disappeared is the level of control that made full uBlock Origin unusually capable.

Can you reinstall old uBlock Origin manually and make it work on Chrome?

No. Downloading an old copy of uBlock Origin does not restore the Manifest V2 support that Chrome removed.

This is where a lot of outdated advice online gets confusing.

During Google's gradual phase-out, some Chrome users could keep uBO alive by retaining an existing installation, changing experimental flags, using enterprise policies or manually loading the extension. Those tricks worked because Chrome still contained enough Manifest V2 support underneath.

Chrome 139 ended that period. Once the browser stopped supporting Manifest V2 extensions altogether, obtaining the uBO files became largely irrelevant.

Raymond Hill still publishes uBlock Origin source code and Chromium builds through GitHub, so the extension itself has not disappeared. Those builds can still matter on browsers that continue to support them.

Current Google Chrome is the problem. Manually installing the same extension package cannot give Chrome back an extension API the browser no longer exposes.

Is uBlock Origin Lite the official Chrome replacement?

Yes, uBlock Origin Lite is Raymond Hill's official option for current Chrome, although Hill deliberately treats it as a separate product rather than a feature-for-feature replacement for uBlock Origin.

That wording matters because uBO Lite comes from the same developer and uses much of the same filtering ecosystem. This is not an unrelated extension borrowing the uBlock name.

Hill built uBO Lite specifically around Manifest V3. Its current default rules include uBlock Origin's own filter lists, EasyList, EasyPrivacy and Peter Lowe's ad and tracking server list.

At the same time, the uBO Lite FAQ says users were never automatically migrated from uBO to uBO Lite. Hill wanted users to make that choice themselves because the two extensions behave differently.

Chrome users have clearly made that choice in huge numbers. The Chrome Web Store now shows around 18 to 19 million uBlock Origin Lite users, depending on the localized store view being indexed. That's a substantial increase from the early days of the Manifest V3 transition and makes uBO Lite one of Chrome's biggest privacy extensions.

So if someone searches for "uBlock Origin for Chrome" today, uBO Lite is the version they should realistically be evaluating.

Does uBlock Origin Lite actually block ads well on Chrome?

Yes. For normal ad and tracker blocking, uBlock Origin Lite is good enough that many former uBO users will barely notice the downgrade.

The reason is simple: its default filtering foundation remains strong.

uBO Lite ships with uBlock Origin's built-in filters, EasyList, EasyPrivacy and Peter Lowe's list. Together, those cover a large amount of mainstream advertising, tracking and unwanted network traffic.

The Chrome Web Store currently describes uBO Lite as blocking ads, trackers and cryptocurrency miners immediately after installation. Hill himself says the extension is designed especially for people who used uBO as an "install-and-forget" blocker.

That probably describes a large share of uBlock Origin's audience. Plenty of people installed uBO years ago, never opened the advanced settings and simply expected ads to disappear.

Those users lose surprisingly little by moving to Lite.

The gap becomes much easier to see when someone was using uBO as a filtering toolbox rather than a simple ad blocker.

Why can't uBlock Origin Lite do everything full uBlock Origin could?

Chrome's Manifest V3 rules put a lower ceiling on uBlock Origin Lite, especially when filtering requires decisions that cannot be prepared in advance.

Full uBlock Origin has its own powerful filtering engine. It can inspect requests, apply contextual rules and react dynamically while a page is running.

uBO Lite works much more through Chrome's declarativeNetRequest system. The extension prepares rules, gives them to Chrome and lets the browser enforce them.

That design has some nice properties. According to Hill's current documentation, uBO Lite does not need a permanent extension process running during normal filtering. Its service worker mainly wakes when the user interacts with the extension's interface or settings.

That can reduce extension-side CPU and memory use, although it does not prove every webpage will load faster overall. Hill has been cautious himself about simplistic performance comparisons between blockers.

The real trade-off is flexibility. Chrome can enforce a large prepared ruleset very efficiently, but some filtering logic cannot be converted into those rules.

Full uBO therefore remains better when a site requires a complicated, highly contextual response.

Capability	Full uBlock Origin	uBlock Origin Lite
Normal ad blocking	Yes	Yes
Tracker blocking	Yes	Yes
EasyList and EasyPrivacy	Yes	Yes
Custom filters	Yes	Yes, with more constraints
External filter lists	Yes	Yes, now supported
Dynamic filtering	Yes	Much more limited
Advanced per-site firewall	Yes	No equivalent
Best use case	Maximum control	Everyday Chrome blocking

Has uBlock Origin Lite become better lately?

Yes. uBlock Origin Lite is much more capable now than it was when many early comparisons with full uBO were written.

This is probably the biggest recent development for anyone researching the question today.

One of uBO Lite's early compromises was that users could not freely create custom filters or subscribe to arbitrary external filter lists. Hill even cited those restrictions when explaining why he called the extension "Lite."

That changed in 2026.

The current uBO Lite FAQ says custom filters and subscriptions to external filter lists are now available while preserving the extension's declarative design. Recent development work has also expanded custom cosmetic filtering, imported lists, popup handling and third-party list processing.

The extension is still constrained by Manifest V3, so the name "Lite" remains justified. But reviews or forum discussions written when uBO Lite lacked custom filters are now describing an older product.

That improvement also helps explain why the current user base has climbed into the high teens of millions.

Where will uBlock Origin Lite still struggle compared with full uBlock Origin?

uBlock Origin Lite is most likely to fall behind on aggressive anti-adblock sites and other pages that need sophisticated, real-time filtering.

Hill says this directly in uBO Lite's own documentation.

Some websites constantly change scripts, request patterns or page elements to get around blockers. Full uBlock Origin can respond with filtering techniques that depend on context, scriptlets and dynamic decisions.

Manifest V3 leaves fewer options for handling those edge cases.

The difference can be almost invisible on one website and obvious on another. Both extensions might remove the banner ads, for example, while only full uBO successfully handles the anti-adblock script, video overlay or unusual network request surrounding them.

Blanket claims that "uBO Lite is basically identical" do not hold up.

For normal browsing, it can feel very close. Once a website starts actively fighting the blocker, the missing capabilities become easier to notice.

Do you need to change uBlock Origin Lite's settings after installing it?

Often, yes. Checking uBlock Origin Lite's filtering mode is worth doing because the mode can noticeably change what disappears from a webpage.

uBO Lite currently offers different filtering levels, and the project's documentation describes Optimal as the intended everyday setting.

Basic mode mainly relies on network filtering. Cosmetic filtering and scriptlet-based filtering are more restricted there, so an advertisement may stop loading while its empty box or surrounding page clutter remains visible.

Optimal allows broader page-level filtering while keeping permissions relatively limited.

Complete mode gives uBO Lite broader access on websites and can help when Optimal leaves unwanted elements behind. Hill specifically points users toward stronger filtering modes when they encounter those cases.

This creates an easy source of bad comparisons. Someone running uBO Lite with minimal permissions can switch from full uBO, see more empty ad spaces and assume Manifest V3 is entirely to blame.

Sometimes it is. Sometimes the extension simply has not been given the access required to clean the page properly.

Does Manifest V3's rule limit cripple uBlock Origin Lite?

No. Rule limits still exist, but they are no longer the main reason uBlock Origin Lite falls short of full uBO.

Early Manifest V3 criticism often focused on how many filtering rules an extension could load. That was a legitimate concern because large blockers rely on enormous lists.

Google expanded those limits over time, and uBO Lite now comfortably ships several major lists at once. Its default package includes uBlock's own filters, EasyList, EasyPrivacy and Peter Lowe's list before users add anything else.

The harder limitation concerns what those rules can actually express.

Giving a blocker hundreds of thousands more declarative rules does not recreate a filtering engine capable of making the same contextual decisions as full uBO.

As a result, the rule-count debate has become less useful than it once was. Chrome gives uBO Lite enough room to perform mainstream blocking at serious scale.

Advanced behavior remains where Manifest V3 shows its limits.

Are uBlock Origin Lite's filters still kept up to date?

Yes, uBlock Origin Lite's filtering system is actively maintained, although its update model still differs from full uBlock Origin.

Classic uBO can fetch many filter-list updates independently from extension releases. That is useful when filter maintainers need to react quickly to a website that has just changed its advertising or anti-blocker code.

uBO Lite was initially more dependent on rules being compiled into extension releases. That made the update cycle less flexible.

The situation has improved lately because uBO Lite now supports subscriptions to external filter lists. Those lists can be updated separately instead of waiting for every filtering change to arrive through a full extension release.

The extension itself is also being updated regularly. The Chrome Web Store showed a fresh uBO Lite build in late August, while Firefox received a new full uBlock Origin release only a few weeks earlier. Both branches are clearly still under active development.

There is no sign today that uBO Lite has been abandoned or frozen after the Manifest V3 transition.

Does uBlock Origin Lite still protect your privacy on Chrome?

Yes. uBlock Origin Lite remains a serious privacy blocker, and Chrome's own privacy settings do not make it redundant.

EasyPrivacy comes enabled in uBO Lite's default filter set, alongside other lists that block known tracking and advertising infrastructure.

Raymond Hill's privacy policy also remains unusually simple. The developer says uBO Lite contains no analytics or telemetry and does not send browsing activity to a home server. The Chrome Web Store currently states that the extension does not collect or use user data.

There is no paid "acceptable ads" program attached to uBO Lite either.

Chrome itself has improved protections around malicious sites, permissions, cookies and browser security, but those features cover a different job. They do not give users a community-maintained filtering system that can remove advertising resources, tracking requests, scripts and cosmetic page elements.

For someone who wants privacy filtering inside Chrome today, uBO Lite still adds something substantial.

Should Chrome users choose uBlock Origin Lite over other ad blockers?

For most people who liked uBlock Origin, uBlock Origin Lite is currently one of the easiest Chrome recommendations because it keeps the same developer, much of the same filter ecosystem and the same non-commercial philosophy.

Other Manifest V3 blockers can also work well. AdGuard and Adblock Plus, for example, remain active on Chrome and make different technical choices.

But switching from uBO Lite to another Chrome extension cannot fully solve the problem that caused full uBO to disappear. Every Chrome extension ultimately works within the APIs Chrome exposes.

A competing blocker may handle one edge case better, provide different interface features or make different trade-offs around permissions and background processing.

None of that recreates Manifest V2 inside Chrome.

For someone who simply wants strong ad blocking without changing browsers, uBO Lite is a very sensible place to start.

For someone specifically hunting for a Chrome extension that secretly restores every full uBO feature, that extension does not exist.

Is Firefox now better than Chrome for uBlock Origin?

Yes. If full uBlock Origin is important to you, Firefox is currently the clearest mainstream browser choice.

Mozilla still supports the APIs that uBO needs for its full filtering model, and the complete extension remains actively distributed through Firefox Add-ons.

The latest Firefox listing shows more than 10 million uBlock Origin users, and the extension is still receiving substantial updates. A recent uBO release added and improved several scriptlets, filtering utilities and anti-breakage tools, exactly the kind of work that shows full uBO remains a living product rather than a legacy extension being kept alive.

Raymond Hill has also said for years that uBlock Origin works best on Firefox. Firefox gives the extension capabilities such as CNAME uncloaking and HTML filtering that have historically gone beyond what Chromium browsers exposed.

That makes the browser decision much clearer than it used to be.

If uBlock Origin is simply your preferred way to remove common ads, Chrome plus uBO Lite works well.

If you chose uBlock Origin because you want everything uBO can do, Firefox gives you the full version with far fewer compromises.

Can Brave, Edge or another Chromium browser still run full uBlock Origin?

Some Chromium browsers can differ from Chrome, but full uBlock Origin support across Chromium is becoming increasingly unreliable as a long-term strategy.

Chromium is the open-source browser project underneath Chrome, Edge, Brave, Opera and several other browsers. Those companies do not have to copy every Google policy immediately.

That created a period where "uBlock Origin no longer works on Chrome" did not necessarily mean "uBlock Origin no longer works anywhere based on Chromium."

Microsoft has been carrying out its own Manifest V2 retirement in Edge, for example, rather than following Google's timetable exactly.

Brave takes a different route again. It includes its own powerful blocker directly in the browser, so Brave users can get extensive ad and tracker blocking without depending entirely on a Manifest V3 extension.

These differences can extend the useful life of certain blocking approaches, but they are less reassuring if your goal is to keep full uBO unchanged for years.

Firefox currently offers the cleaner answer because full uBlock Origin support there does not depend on another Chromium vendor postponing Google's extension changes.

Who will actually notice the downgrade from uBlock Origin to uBlock Origin Lite?

Most casual uBlock Origin users probably will not notice much, while power users can hit the limits of uBlock Origin Lite fairly quickly.

Imagine someone who installed uBO years ago and has never opened its dashboard. They want popups gone, trackers reduced and ordinary webpage ads removed.

uBO Lite handles that job well today.

A more demanding user might enable extra lists, remove specific page elements and write the occasional custom filter. Recent additions to uBO Lite have made that use case much more practical than it was a year ago.

The biggest gap appears for people who use uBO's logger, dynamic filtering, complex per-site rules or advanced firewall controls. Those tools turn uBlock Origin into something much broader than a conventional ad blocker.

Chrome no longer gives uBO Lite everything required to reproduce that workflow.

How you use uBlock Origin	Is uBO Lite enough?
Block normal webpage ads	Usually yes
Block common trackers	Usually yes
Add extra filter lists	Increasingly yes
Write occasional custom filters	Usually workable now
Fight difficult anti-adblock sites	Sometimes weaker
Use dynamic filtering	No equivalent
Use uBO as a browser firewall	No equivalent
Want every uBO feature	Firefox is the better fit

Did Manifest V3 actually kill ad blocking on Chrome?

No. Ad blocking on Chrome is still very much alive today, but Chrome has made advanced blockers less powerful than they used to be.

The scale of uBO Lite alone makes the "ad blockers are dead on Chrome" claim hard to defend. The Chrome Web Store currently shows roughly 18 to 19 million uBO Lite users, and the extension continues to receive new features and filtering updates.

Those users still get EasyList, EasyPrivacy, uBlock's filters and several other blocking tools running directly through Chrome's Manifest V3 system.

Yet the opposite claim, that Manifest V3 changed almost nothing, does not survive scrutiny either.

Raymond Hill created a separate Lite extension because full uBlock Origin could not simply be moved onto Manifest V3 intact. The current FAQ still documents filtering capabilities that cannot be ported, even after recent improvements narrowed the gap.

Chrome therefore still offers very effective everyday ad blocking.

What users lost is the unusually high ceiling that full uBlock Origin offered when a website became difficult.

So, can you still use uBlock Origin on Chrome?

You can still use the uBlock project on Chrome today through uBlock Origin Lite, but the original full uBlock Origin is gone from current Chrome.

For a lot of people, that answer is less bad than it sounds.

uBO Lite now has roughly 18 to 19 million Chrome users, uses the core filter lists people expect from uBlock, blocks ordinary ads and trackers effectively, and has recently gained custom filters and external filter-list subscriptions that were missing from earlier versions.

Someone who installed uBlock Origin mainly to make the web cleaner can stay on Chrome, install uBO Lite and probably be satisfied.

Advanced uBO users face a different choice. Dynamic filtering, the full per-site firewall and some of uBO's more sophisticated filtering tricks cannot be reproduced properly within Chrome's current extension system.

For those users, hunting for another Chrome workaround is increasingly pointless. Firefox still runs the complete uBlock Origin and continues to receive new full-uBO releases.

The practical answer today is straightforward: Chrome still has very good uBlock-powered ad blocking, while Firefox is where the full uBlock Origin experience now lives.