← Back to ShieldlyManifest V3

Manifest V3 ad blocker for modern Chrome.

Shieldly is built for the current Chrome extension platform with clear permissions, local-first controls and practical ad blocking behavior.

Built for Chrome's modern extension model

Manifest V3 changed how Chrome extensions handle background work and filtering. Shieldly is designed around the modern platform so it can provide ad blocking, tracker blocking and page cleanup through current Chrome extension patterns.

Clear permission story

Shieldly explains its single purpose and permission use in its Chrome Web Store disclosure and privacy policy. The goal is straightforward: reduce ads, trackers and distractions, not collect unrelated data.

Local protection choices

Manifest V3 compatibility pairs with local settings, protection modes and per-site controls, giving users a browser-native way to manage blocking behavior.

Network rules and page cleanup have different jobs

Manifest V3 is the extension platform used by this Shieldly build. Network filtering uses the browser's declarative rule mechanisms, while page cleanup handles supported visible elements. A rule that stops a request and a rule that removes its empty container are not interchangeable. This is why a diagnostic result about active rules and the appearance of a page should be considered together rather than used as competing measures of protection.

What updates can change

A browser-store release updates the extension package. Filter-related updates can change supported matching behavior separately when that feature is configured and enabled. Check the settings page for the actual update status instead of assuming that opening the popup installs new rules. If a problem begins after an update, record the installed version, rule status and a reproducible page example before changing multiple options.

Use diagnostics instead of platform assumptions

A Manifest V3 label does not establish that every browser build exposes identical capabilities or that every advertising technique is covered. Use Diagnostics to inspect the extension state in your actual browser. When reporting an issue, distinguish a missing permission, an inactive module and a page-specific filtering failure. These require different fixes, and switching to a stricter mode is not a substitute for an unavailable browser API.

Frequently asked questions

Does Manifest V3 mean all ads are blocked?

No. It describes an extension platform. Filtering coverage still depends on the rules, supported features and the website's delivery behavior.

Why can cleanup and request counters differ?

They measure different events. A page element can be hidden after loading, while a network rule can stop a request before a visible element exists.

Related pages

Read the Chrome disclosure, site controls and Chrome ad blocker pages.