Support
Help with the generator, the Chrome Web Store extension, or a rule that stopped working.
Email ohm@wbnns.com — you'll usually hear back within a few days.
If it's about a rule that isn't working, include the rule itself and the site it's on. That's the difference between a quick answer and a lot of back-and-forth guessing.
Common questions
What is ohm?
A Chrome extension that runs your own uBlock Origin-style cosmetic filters — rules that hide specific things on specific sites. See the homepage for the two ways to install it, or the docs for the full syntax reference.
A rule isn't hiding anything — where do I start?
Check the troubleshooting section first — it covers the most common causes (rule targeting the wrong host, a selector that stopped matching after a site redesign, or two procedural operators chained in one rule, which silently does nothing). If that doesn't resolve it, email the rule and the site and it's usually quick to diagnose.
Why does the Chrome Web Store version ask for permission on every site?
Because it's one shared install that doesn't know in advance which sites your rules will target — it only ever acts on a page once you've written a rule for it. Full explanation, with links straight to the source code, at Trust, but verify. If you'd rather not grant that permission at all, build a personal copy instead — scoped to only your own hosts, no store install required.
How do I add or change rules after installing?
Chrome Web Store version: click the toolbar icon to reopen the settings page, edit your list, save, then reload any open tab you want the change to apply to. Build-your-own version: re-paste your updated list into the generator, download again, and reload the unpacked extension.
Does ohm cost anything?
No. Free, open source, MIT licensed. No account, no subscription, nothing to cancel.
I found a selector that broke, or a bug in ohm itself
Please open an issue on GitHub — that's the fastest way to get it looked at, and it helps the next person hitting the same thing. Email works too if you'd rather not use GitHub.
Can I request a feature or contribute?
Yes — GitHub issues for requests, PRs welcome. The whole project is small enough to read in one sitting; see the docs for how the pieces fit together.
Is my data private?
Yes — full detail at the privacy policy. Short version: nothing you paste or write is ever sent anywhere, in either version.