Host AdBlocker

Host AdBlocker

An open-source DNS-based ad-blocker that operates based on host filtering to block ads, malware, phishing hostnames

Host AdBlocker promo image
What is Host AdBlocker?

Host AdBlocker is an open-source Firefox add-on that uses host matching to block ads, malware, and phishing hostnames. It offers improved performance and reduced memory usage compared to other ad-blocker extensions.

Stats date:
By: Ray
Users: 51 ▲ 1
Rating: 4.63 (8)
Version: 0.1.4 (Last updated: 2021-07-05)
Creation date: 2017-08-13
Weekly download count: 6
Firefox on Android: Yes
Manifest version: 2
  • *://*/*
  • storage
  • webRequest
  • webRequestBlocking
Size: 319.72K
URLs: Website
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

This is an ad-blocker add-on that uses host matching instead of RegExp matching to increase performance and reduce memory usage.

When a new resource is requested, the extension matches its hostname to the list of the known advertisement or analytic sources. If the hostname is on the blacklist, the request gets blocked. If not, it will load as usual.

You can extend the default list by adding your custom domain names in the backlist text box or whitelist a top domain by adding its hostname into the whitelist textbox.

The default blacklist hostnames:

Before adding a new hostname to the list, make sure to check the current state of the hostname by inserting the hostname in the evaluation input box.

Difference between this extension and other ad-blocker extensions: Extensions like uBlock Origin or AdBlock Plus use RegExp matching, which is more powerful but slow in performance. This one only uses exact host matching. Since some websites still inject inline scripts, it is recommended to install a popup blocker along with this extension.

User reviews
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Risk impact

Host AdBlocker is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Host AdBlocker if you trust the publisher.

Risk likelihood

Host AdBlocker has earned a fairly good reputation and likely can be trusted.

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