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Groups > alt.comp.os.windows-10 > #186979

Re: uBlock Origin 1.65.0 (2025-07-10)

Cross-posted to 3 groups.

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On Sun, 24 Aug 2025 17:11:04 +0100, J. P. Gilliver wrote :


>> If you use Brave Browser, no adblocking add-on is needed.
>> 
> How does Brave Browser block ad.s? I presume it's more than just a
> different-host (than the page being viewed) detector, since many pages
> rely on scripts from hosts other than their home one, and some even use
> images stored elsewhere.

Since I'm building my own DIY privacy browser, I looked that up just now.

Brave's built-in ad-blocking is apparently called Brave Shields, which
seems to act on every site using rule sets from EasyList, EasyPrivacy &, to
the point of this thread, uBlock Origin lists... each of which strives to
identify and block well-known ad and tracker domains.

This is much like how our HOSTS file was used for years to block tracking.

Digging deeper, apparently Brave can also block JavaScript execution, which
is often used to load ads dynamically. This helps prevent those irritating
pop-ups, autoplay videos, and interstitial ads.

Also, apparently Brave can hide specific HTML elements (like <div> or
<img>) that are used to display ads, even if they come from the same host.

Delving deeper immediately brought me into the Alice in Wonderland
complexity though, as Brave Brave apparently then goes even deeper than
traditional ad blockers do, given it handles  something called "CNAME
Uncloaking", which means it detects when third-party trackers disguise
themselves as first-party resources using DNS tricks.

Who knew? Not me.

It goes deeper than that with Brave replacing problematic scripts with
privacy-respecting versions to maintain site functionality. Huh? How?

Deeper I went into the rabbit hole where Brave seems to be doing some
fingerprint randomization to prevent tracking via browser fingerprinting by
randomizing or removing identifying APIs.

Cookie Partitioning & Ephemeral Storage: Blocks cross-site cookies and
replaces third-party storage with temporary, auto-deleted versions.

In summary, it got complicatred fast when I looked up the answer for you,
but we can summarize to say that Brave doesn't block all third-party
content indiscriminately. Instead, it uses context-aware filtering by
allowing third-party scripts (like CDNs or analytics) while blocking known
ad-serving and tracking domains.

Who knew?
Not me.

I'm confused but for ad blocking, Brave seems like a good starting point.

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Thread

uBlock Origin 1.65.0 (2025-07-10) D <noreply@dirge.harmsk.com> - 2025-08-23 14:28 -0400
  Re: uBlock Origin 1.65.0 (2025-07-10) "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2025-08-24 15:32 +0800
    Re: uBlock Origin 1.65.0 (2025-07-10) "John C." <r9jmg0@yahoo.com> - 2025-08-24 01:24 -0700
      Re: uBlock Origin 1.65.0 (2025-07-10) Jim the Geordie <jim@geordieland.com> - 2025-08-24 09:48 +0100
        Re: uBlock Origin 1.65.0 (2025-07-10) Marion <marion@facts.com> - 2025-08-24 14:54 +0000
          Re: uBlock Origin 1.65.0 (2025-07-10) Marion <marion@facts.com> - 2025-08-29 05:40 +0000
        Re: uBlock Origin 1.65.0 (2025-07-10) "J. P. Gilliver" <G6JPG@255soft.uk> - 2025-08-24 17:11 +0100
          Re: uBlock Origin 1.65.0 (2025-07-10) Marion <marion@facts.com> - 2025-08-24 18:34 +0000
  Re: uBlock Origin 1.65.0 (2025-07-10) wasbit <wasbit@REMOVEhotmail.com> - 2025-08-25 09:53 +0100

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