Is AdGuard for Chrome Good in 2026? Tested Review

AdGuard’s Chrome extension is good in 2026. It is MV3-native (AdGuard shipped the first ad blocker built on Manifest V3), scores 100/100 on AdBlock Tester with all filters enabled, and the stable listing carries roughly 17 million users at 4.7 stars as of June 2026. It blocks well. What it does not do is manage browser memory.

What AdGuard Does Well

The headline number first. On AdBlock Tester, AdGuard’s MV3 extension scores 83/100 out of the box and climbs to 100/100 once you enable the full filter set in settings. That default-versus-tuned gap matters: most people install, never open settings, and run at the lower number. Two minutes in the filter list pushes it to a perfect score.

The MV3 transition is the real story. When Google disabled Manifest V2 in Chrome 138 (mid-2025), a lot of blockers lost their most powerful filtering. AdGuard rebuilt on MV3 instead of bolting it on. The result uses Chrome’s declarativeNetRequest engine, so blocking happens at the network layer with no per-request JavaScript. Low overhead, and it survives Chrome’s own restrictions.

The interface is the cleaner-than-expected part. Visible toggles, per-site control, granular filter lists. If you want to see what is on and flip things off per domain, it is one of the more legible blockers on Chrome.

The Quick Fixes Layer

MV3 caps dynamic rules at 5,000 per extension and limits static rules too, which is the constraint that hobbled lesser blockers. AdGuard’s answer is a system it calls Quick Fixes: a small pool of dynamic rules reserved for pushing real-time filter patches without shipping a whole new extension version through the store.

This matters most for moving targets like YouTube, where ad delivery changes often and a normal store update takes days to review. Quick Fixes lets AdGuard patch a break in hours instead. It does not eliminate YouTube gaps, no MV3 blocker can promise that, but it shortens them.

Tested Numbers and Real Limits

The limit is scope. AdGuard is a blocker, and only a blocker. It will cut the ads, trackers, cookie banners, and social widgets loading in your active tabs. It will not touch the memory that thirty idle background tabs are sitting on. Those are two different problems, and a perfect ad blocker does nothing for the second one.

Where AdGuard Stops

If your Chrome is sluggish, ad blocking is half the picture at most. Ads inflate the memory of the page you are looking at. The bigger drain is usually the pile of tabs you opened hours ago and never closed, each holding its full render in RAM whether you look at it or not. AdGuard leaves every one of those fully loaded.

That is not a flaw in AdGuard. It is a category boundary. You would pair it with a tab suspender, the way you pair a spell-checker with a thesaurus. SuperchargePerformance sits on that other side: it suspends idle tabs on a timer using chrome.tabs.discard(), freeing 90-95% of each suspended tab’s RAM, and shows the running total in its popup. It also ships its own declarativeNetRequest blocking from 186K+ rules, so the combined install covers both jobs without stacking three extensions. Running two DNR blockers can conflict, so if you keep AdGuard for blocking, switch SuperchargePerformance’s blocking off and keep its suspension. Zero telemetry, local-only, free core, no account on either side.

The Verdict

AdGuard for Chrome is a strong, well-maintained, MV3-native ad blocker, and the 100/100 ceiling is real once you enable the full filter set. For pure blocking it is among the best things you can install on Chrome in 2026. Rated four stars here rather than five only because the default score sits below its ceiling and because blocking is the whole of what it does.

If you want maximum filter coverage and nothing else, install AdGuard and spend two minutes in the filter settings. If your actual complaint is that Chrome feels heavy and slow, blocking ads will help the active tab but leave your real memory problem untouched, and you will want a suspender alongside it.

For the side-by-side feature breakdown, see AdGuard vs SuperchargePerformance. For the MV2 context behind AdGuard’s rebuild, see Is uBlock Origin removed from Chrome?.