nth-ancestor(n) and upward(arg) look handy. They're uBO extensions.
https://github.com/gorhill/uBlock/wiki/Procedural-cosmetic-f...
In Ask HN: Why does Pinterest dominate Google text search results?gorhill
uBlock
JavaScript2014–2026
gorhill / uBlock
uBlock
uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.
554Distinct people
875Mentions
11Explicit recommenders
69.3KGitHub stars
What to know before exploring
What it is
uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.
GitHub
Where it is used
- LibreWolf — LibreWolf includes uBlock Origin in the browser. Source
- Mullvad Browser — Mullvad Browser uses uBlock Origin to block third-party trackers. It includes this extension as part of its tracker-blocking approach. Source
What people are saying
You should look into the homepage linked from there https://github.com/gorhill/uBlock because that's were it's really from, and not some recommendation via. Especially their…
LargoLasskhyfv used a recommendation phrase. 12 indexed comments match. This is a phrase match, not a verdict.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
- gorhill/umatrix · linked in 17 of the same discussions
- ublock-llc/ublock · linked in 9 of the same discussions
- ublockorigin/uassets · linked in 6 of the same discussions
Mentioned in the same Hacker News threads. That is not proof they are substitutes.
This week on Hacker News
Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 6:36:16 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year875 dated mentions
Observed mentions: 2014-06-24 09:19:53 UTC to 2026-10-13 19:36:47 UTC.
* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2014 | 2014-01-01 00:00:00 UTC | 2015-01-01 00:00:00 UTC | 24 | 4 | 20 |
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 127 | 13 | 114 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 70 | 3 | 67 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 53 | 2 | 51 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 67 | 2 | 65 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 59 | 4 | 55 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 76 | 3 | 73 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 85 | 5 | 80 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 92 | 7 | 85 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 99 | 9 | 90 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 52 | 3 | 49 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 45 | 2 | 43 |
| 2026 (partial) | 2026-01-01 00:00:00 UTC | 2027-01-01 00:00:00 UTC | 26 | 0 | 26 |
From the project README
An excerpt from the repository, fetched Nov 12, 2026.
Read the project’s introduction
uBlock Origin (uBO)
Browser
Install from ...
Status
Firefox Add-ons
uBO works best on Firefox
Edge Add-ons
"Moving the Microsoft Edge extensions ecosystem forward with Manifest Version 3": "Beginning in August 2026, Microsoft Edge will start the consumer transition away from Manifest Version 2 (MV2) extensions and toward MV3. Our goal is to complete the consumer transition by the end of 2026, with enterprise deprecation following in early 2027."
Opera Add-ons
Removed
"Manifest V2 support timeline": "Aug 31st 2026: All remaining Manifest V2 extensions removed from the Chrome Web Store"
About Google Chrome's "This extension may soon no longer be supported"
Thunderbird Add-ons
No longer updated and stuck at 1.49.2. Later versions require "GitHub - Releases".
GitHub - Releases
Stable and development versions on Firefox, Chromium MV2, and Thunderbird. Must be placed manually into web browsers; the Chromium and Thunderbird versions usually won't auto-update.
Related:
uBlock Origin Lite
uBlock Origin (uBO) is a CPU and memory-efficient wide-spectrum content blocker for Chromium and Firefox. It blocks ads, trackers, coin miners, popups, annoying anti-blockers, malware sites, etc., by default using EasyList, EasyPrivacy, Peter Lowe's Blocklist, Online Malicious URL Blocklist, and uBO filter lists. There are many other lists available to block even more. Hosts files are also supported. uBO uses the EasyList filter syntax and extends the syntax to work with custom rules and filters.
You may easily unselect any preselected filter lists if you think uBO blocks too much. For reference, Adblock Plus installs with only EasyList, ABP filters, and Acceptable Ads enabled by default.
It is important to note that using a blocker is NOT theft. Do not fall for this creepy idea. The ultimate logical consequence of blocking = theft is the criminalization of the inalienable right to privacy.
Ads, "unintrusive" or not, are just the visible portion of the privacy-invading means entering your browser when you visit most sites. uBO's primary goal is to help users neutralize these privacy-invading methods in a way that welcomes those users who do not wish to use more technical means.
Documentation
Installation
Firefox
Chromium
Thunderbird
All Programs
Enterprise Deployment
Release History
Translations
About
Documentation
Basic Mode
Advanced Mode
The simple popup user interface for an install-it-and-forget-it type of installation that is configured optimally by default.
The advanced popup user interface includes a point-and-click firewall that is configurable on a per-site basis.
Visit the Wiki for documentation.
For support, questions, or help, visit /r/uBlockOrigin.
Installation
Required Permissions
Firefox
Firefox Add-ons
Development Builds
uBO works best on Firefox and is available for desktop and Android versions.
Chromium
Chrome Web Store: Removed on 2026-08-31
Microsoft Edge Add-ons (Published by Nicole Rolls until version 1.62. Ownership transfer at version 1.64.)
Opera Add-ons
uBO should be compatible with any Chromium-based browser.
Thunderbird
Thunderbird Add-ons
In Thunderbird, uBlock Origin does not affect emails, just feeds.
All Programs
Do NOT use uBO with any other content blocker. uBO performs as well as or better than most popular blockers. Other blockers can prevent uBO's privacy or anti-blocker-defusing features from working correctly.
Manual Installation
Enterprise Deployment
Deploying uBO
Release History
Releases Page
Translations
Help translate uBO via Crowdin.
About
Manifesto
Privacy Policy
GPLv3 License
Free. Open-source. For users by users. No donations sought.
If you ever want to contribute something, think about the people working hard to maintain the filter lists you are using, which are available to use by all for free.
Read the full README on GitHubWhat Hacker News says
76 sourcesyou're well on your way to default-deny mode on uBlock, which is a great way to run uBlock Origin / uMatrix if you don't mind a couple of refreshes and a couple false starts when it comes to ordering stuff on e.g. shopify:
https://github.com/gorhill/uBlock/wiki/Dynamic-filtering:-de...
In The Quantum Ad-List contains domains used by ads, trackers, malwareI used to donate to Wikipedia until I found they that have plenty of money already. I used to donate to Mozilla until I found that they don't use the money for Firefox development but for anti-free speech propaganda like [1]. I have donated to the EFF and the Internet Archive a few times. I wanted to donate to UBlock Origin but the developer doesn't want it [2]. I'd like to give something to youtube-dl because I use it extensively but apparently that's not possibly either [3]. I should consider donating to Ubuntu/Debian, I've never done that despite being a long time user.. For my work I mostly use open source software by Google and I think they'll survive without my money. Other than that I've mostly given to smaller podcasts and websites.
[1] https://foundation.mozilla.org/en/blog/fellow-research-decen...
[2] https://github.com/gorhill/
Read the rest
Universal analytics opt out: https://github.com/gorhill/uBlock
In Google Analytics Opt OutDisable javascript for nytimes.com.
It's a one click action with uBlock Origin in your browser.
https://github.com/gorhill/uBlock/wiki/Per-site-switches#no-...
In Apple TV Was Making a Show About Gawker. Then Tim Cook Found Out> uBlock Origin is blocking ublock.org on the basis of it being malware. Are you saying it's not actually a malware risk, and it's really on Origin's blocklist for some totally unrelated reason?
We don't have to speculate. The reason is right here, and it's not because of malware.
https://github.com/gorhill/uBlock/wiki/uBlock-Origin-is-comp...
If it were malware, then why would it still be in the Chrome Web Store? Google reviews every extension update, and also has the power to remove extensions from the store, regardless of Manifest v3.
It's also important to note that Manifest v3 only affects the content blocking capability of extensions. Extensions that are not content blockers still have extremely powerful capabilities that could be abused to capture user data or otherwise do harm. And those extensions can change ownership too. Manife
Read the rest
st v3 is not even remotely close to a solution to this general problem.
I thought that "CNAME cloacking" was already addressed by uBlock and most similar tools last year already? I don't think it's a very effective method to bypass them.
At least, that's what I can gather from the linked issue and https://github.com/gorhill/uBlock/releases/tag/1.25.0 – so I'm not sure if I understand that article.
In goatcounter the whole CNAME thing was just intended as a cute "shortcut" so you can have "stats.example.com"; I assumed that all adblockers would deal with that correctly, and it was never intended as a way to bypass them (and certainly never advertised as such).
As for "selling IP address", how do you know "blog.example.com" isn't just collecting and selling that? Or HN for that matter?
In Using Google Analytics without GDPR consentIt would be interesting to gather a list. uBlock Origin can disable Web Fonts
https://github.com/gorhill/uBlock/wiki/Per-site-switches#no-...
so it should be possible to log. And given a list it is not hard to download.
In Self-host your fonts for better performanceJust use uBlock Origin.
https://github.com/gorhill/uBlock/wiki/Per-site-switches#no-...
In Self-host your fonts for better performanceCalling it spying is hyperbole, and thrusting your personal ethics on others is nonproductive.
If analytics turn you off, there are plenty of browser extensions which will block them on your behalf. uBlock Origin is the most common example.
https://github.com/gorhill/uBlock
In Using Google Analytics without GDPR consentuBlock Origin has a setting to prevent loading elements above certain size. I personally find it to be a nice middle ground.
https://github.com/gorhill/uBlock/wiki/Per-site-switches#no-...
In Self-host your fonts for better performanceNow is the time to improve your life:
https://github.com/gorhill/uBlock
In Obsolete trig functions and why we don't use them anymore (2013)For a uM rule like:
foo.com bar.com css allow
which means "allow foo.com to fetch css from bar.com", the corresponding uBO static rule is:
@@||bar.com^$domain=foo.com,css,allow
The full list of things that can be allow/block'd by uBO is at https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#...
I have a "block everything by default" rule at the top that's:
*$css,font,frame,media,object,ping,script,websocket,xhr
*$image,redirect=1x1.gif
*$csp=worker-src 'none'
@@*$1p,css,frame,image
which means:
1. Block a bunch of things by default.
2. Block images by replacing them with the built-in 1x1 GIF instead of canceling the request.
3. Disable web workers by setting the CSP worker-src.
4. Override the previous rules by allowing first-party CSS, frames and images. (The @@ means it's an override rule.)
(The fact t
Read the rest
hat my default is to block everything is why the first example I gave above starts with @@ too.)
Web workers can be allowed on a per-site basis by overriding the csp directive with a reset:
@@||foo.com^$csp
Lastly, I have a dynamic rule to allow `<noscript>` tags to be rendered:
no-scripting: * true
Then, for every static rule where I enable JS for a domain, I add a corresponding `no-scripting: $domain false` in the dynamic rules.
It's annoying to have to move between static and dynamic rules when deciding to enable JS on a site, but I'm not sure there's a better way. Neither static nor dynamic rules individually support everything that uM could do - static rules can't block inline JS nor render `<noscript>` content, and dynamic rules can't block every kind of request.
Static rules are also nice in that you can have empty lines and comments and arbitrary ordering of your rules, so it's easier to group rules in sections based on the domain names, add comments, etc. Dynamic rules however are like uM's rules and are forced to be sorted by domain name with no empty lines or comments.
I like the uBlock Origin philosophy:
> DNT is essentially acknowledging that a 3rd-party is the one in control of your privacy in the 1st place, and you have to resort to asking this 3rd-party -- which has financial (or whatever) interests in tracking you -- to not track/data mine you, and trusting that they respect your wish, with no way for you to find out whether your request is respected. In short, it's BS, and supporting tracking/data mining is agreeing that tracking/data mining is the natural, expected behavior and thus an opt-out "feature".
> Nobody should ever agree to this.
> I see it differently: tracking is opt-in, and the ideal is that users are in full control of their privacy by default. Those who want to track/data mine you should ask you to opt-in, along with all the detailed information of how the data collated from you w
Read the rest
ill be used and monetized (lists all entities to which your data is sold), in the spirit of informed consent.
> Currently the way for users to enforce their privacy choice is to use all the tools at their disposal to prevent their data from ending up in the hands of the trackers/data miners, and DNT is not one of these tools.
https://github.com/gorhill/uBlock/issues/827#issuecomment-15...
uBlock Origin*
https://github.com/gorhill/uBlock/
Chrome: https://chrome.google.com/webstore/detail/ublock-origin/cjpa...
Firefox: https://addons.mozilla.org/en-US/firefox/addon/ublock-origin...
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