The field guide

What filtering changes.
And what it doesn’t.

A plain-English guide to Adblock Plus, from filter lists and site exceptions to the places a browser extension cannot reach.

Inside the browser is not everywhere.

Adblock Plus works in supported browsers. Coverage outside them depends on the product and platform.

often filterable

Browser pages

  • Banner adverts
  • Pop-ups and overlays
  • Selected tracking requests
  • Some video adverts
varies

Sites and streams

  • Changing advert formats
  • Blocker detection
  • Embedded third-party media
  • Useful elements caught by rules
generally outside

Separate apps

  • In-app game advertising
  • Separate streaming apps
  • System-level threats
  • Security software functions

Keep the decisions visible.

LISTS

Start with default rules

Filter lists contain rules used to recognise addresses and elements. They are updated as the web changes.

EXCEPTIONS

Allow a site you value

Pause filtering or add an exception when you want to support a publisher or restore a hidden element.

ACCEPTABLE ADS

Review the setting

Some adverts may be allowed by default under the Acceptable Ads programme. The setting can be changed.

REMOVAL

Stay in control

You can change supported-browser options or remove the extension whenever you choose.

Request. Compare. Decide.

A useful model — not a promise that every page will behave identically.

Abstract network requests passing through filter rules towards a clean content panel
Conceptual illustration of filter-list matching
01A page begins to load

Content and selected network requests enter the browser.

02Rules are checked

Addresses and elements are compared with active lists.

03A match may be filtered

Matching content can be blocked or hidden before display.

Begin with the official source.

  1. 01

    Check compatibility

    Open the official site and see what is currently available for your browser or device.

  2. 02

    Review permissions

    Continue to the official extension store. Read the permissions shown by your browser before adding anything.

  3. 03

    Tune the controls

    Review filter lists, privacy options, Acceptable Ads and exceptions after installation.

Open the official provider

Useful answers,
without absolutes.

01Is Adblock Plus free?

The basic version is free. Adblock Plus is also open source. Check the provider’s current site for any optional paid features.

02Does it block every advert?

No. Sites and advert formats change, and coverage depends on your browser, device, filter lists and settings.

03Does it work on mobile?

Options vary by mobile browser and operating system. Adverts inside separate apps are generally outside a browser extension’s reach.

04Can a blocker break a page?

Occasionally a useful page element can be hidden. You can pause filtering or add a site exception when that happens.

05Can I still support websites I value?

Yes. You can allow a chosen site, and you can review the Acceptable Ads setting in the extension’s controls.

Product references: review the provider’s current documentation on filter lists ↗, Acceptable Ads ↗ and open source and funding ↗.

How BeazTees approaches product guidance →