AdBlock and Adblock Plus are separate ad-blocking products that now share related technology and ownership. Both provide free browser filtering, allow site exceptions, and offer optional paid features. Most readers should install only one, keep its default lists current, and choose according to browser support and the controls they actually use rather than expecting a universal performance winner.
The names refer to different products
AdBlock and Adblock Plus began as different extensions. The Adblock Plus comparison states that Eyeo acquired AdBlock in 2021, while the two products remained separate. The same page recommends using one blocker at a time because multiple blockers can introduce duplicate notices, slower browsing, and problems with anti-blocking pages.
That source belongs to the vendor, so treat its feature matrix as product documentation, not an independent speed or privacy benchmark.
Compare the exact browser and device
Availability differs across desktop extensions, Safari content blockers, iOS applications, and supported Android browsers. Check the product’s official installation page and the browser’s extension store before installing. A Chrome extension available on desktop Chrome does not automatically run in Chrome on Android.
| Environment | What to verify |
|---|---|
| Chrome, Edge, Firefox, or Opera desktop | Current official extension listing, permissions, update date, and browser policy limits |
| Safari on macOS | Safari extension requirements and content-blocker settings |
| Safari on iPhone or iPad | Enabled content blockers under Safari settings and any app-specific controls |
| Android | The named supported browser or product app, not a generic “Android extension” claim |
| Managed work or school browser | Administrator policy, approved extension list, and centrally supplied filter lists |
Browser extension rules change, particularly in Chromium-based browsers. A comparison should record the browser version, extension version, and test date instead of promising permanent compatibility.
Defaults matter more than the logo
Both products use filter lists to decide which network requests and page elements to block. Results can differ when one installation has extra lists, custom rules, or an exception that the other does not.
The vendor documents Acceptable Ads as available in both desktop products. This program permits qualifying ads under its criteria when enabled. Readers who want stricter filtering should inspect the setting rather than assuming installation alone blocks every ad.
Before comparing products, record:
- Browser and version.
- Extension and version.
- Enabled filter lists.
- Acceptable Ads setting.
- Custom filters and site exceptions.
- Consent or distraction controls supplied by a paid tier.
- Whether the page was loaded from a clean profile and cleared cache.
Without those conditions, a blocked-ad count says little about which product caused the difference.
A useful matched comparison
Use separate clean browser profiles and install one blocker per profile. Test the same small page set in the same order. Do not log into sensitive accounts on a third-party blocker test site.
| Scenario | Record |
|---|---|
| News article | Visible advertising spaces, content access, and broken media |
| Documentation page | Whether code, navigation, or search still works |
| Video page | Playback, captions, controls, and any anti-blocking message |
| Login form | Form display, password manager, and successful navigation without submitting real credentials |
| Shopping flow | Product images, cart controls, and checkout page access without making a purchase |
Run each scenario first with defaults. If a page breaks, use the product’s per-site pause or allowlist control and reload. Record that adjusted result separately. A blocker that appears more aggressive by default may also need more exceptions for the reader’s normal sites.
This article does not report a hands-on benchmark because no matched browser profiles and page set were captured for this restoration. Product documentation supports the workflow and feature distinctions, not a speed ranking.
Acceptable Ads and additional controls
Free ad blocking is documented for both products. Their paid options may add controls for distractions, cookie notices, and other page elements. Pricing and bundled features can change, so review the current product page at the point of purchase.
Do not equate cookie-notice hiding with refusing tracking consent. A cosmetic filter can remove a visible banner without communicating a privacy choice to the site. Use browser privacy settings and the site’s consent controls for decisions about data processing.
Likewise, Do Not Track is only a browser request. It does not guarantee that a site changes its behavior.
Fix a site that stops working
When a page loses controls, media, or account access:
- Pause the blocker for that site and reload.
- If the page works, re-enable blocking and disable optional lists one at a time.
- Remove custom filters that target the affected element.
- Update filter lists and the extension.
- Check the extension’s issue-reporting process if the default configuration still breaks the page.
Do not add a broad exception for an entire domain when one narrow rule is sufficient. Review old exceptions periodically, because an allowlisted site receives less filtering until the exception is removed.
Which one should you choose?
Choose the product with a current official listing for your browser, understandable default controls, and the platform support you need. AdBlock’s documented desktop statistics may matter to readers who want a visible activity summary. Adblock Plus has an Opera desktop listing in the vendor’s current comparison. Many readers will not need either distinction.
If both support the required environment, install one and evaluate it with the matched scenarios above. Keep the one that blocks the unwanted elements while preserving the sites and accessibility features you use. Avoid installing both to force a larger blocked count.
No blocker guarantees complete filtering on every site. Advertising delivery, browser APIs, extension policies, and video platforms change frequently. Treat any claim of permanent or complete blocking as a condition that requires current, reproducible evidence.
Sources
Primary sources are preferred for current availability and product features. Older walkthrough details are labeled and cross-checked where possible.