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ShieldX Documentation

Version 5.4  ·  Updated January 2025  ·  A Bolrio product

Installation

ShieldX is available as a Chrome extension from the Chrome Web Store. Click Add to Chrome on the ShieldX listing and confirm the permissions prompt. ShieldX activates immediately — no restart or configuration required.

ShieldX requires Chrome 121 or later. It uses Manifest V3 and the Chrome declarative network request API for efficient, privacy-respecting blocking.

First use

After installation you'll see the ShieldX setup page, which walks you through the active filter lists and lets you enable additional blocking categories. You can revisit any setting at any time through the ShieldX Options page.

Quick toggle — popup

Click the ShieldX icon in your Chrome toolbar to open the popup. From here you can:

Filter lists

ShieldX ships with the following filter groups, accessible under Settings → Filters:

Click Update all filters to fetch the latest rules. Filter lists update automatically every 48 hours.

Allowlist

To allow ads on a site you want to support, open the popup and click Add to allowlist, or go to Settings → Allowlist and enter the domain. Allowlisted domains receive no filtering from ShieldX.

Custom rules

ShieldX supports the standard Adblock Plus filter syntax for custom rules. Open Settings → User rules or the fullscreen editor to add your own blocking or exception rules. Examples:

Settings reference

General

Control extension icon counter, context menu integration, notifications, and import/export settings.

Filters

Enable, disable, and update filter subscription lists. Add custom filter subscriptions by URL.

Allowlist

Manage per-domain exceptions. ShieldX ignores all requests on allowlisted domains.

User rules

Write and manage custom Adblock Plus-syntax filter rules.

Filtering log

Real-time log of all requests ShieldX blocked or allowed. Useful for debugging custom rules.

Support and feedback

If something isn't working, visit the ShieldX Support page or use the in-extension "Report an issue" button. Bolrio reviews every report.