Try the example, then check the result.
Download the fictional material and follow the steps below. The video uses English illustrative diagrams; it does not present a live app recording. Product controls may vary by version.
Check the answer before applying the method to your own data. How we review guides ↗
Watch the complete lesson.
The video uses English illustrative diagrams; it does not present a live app recording. English captions. Product menus may differ in your account.
If one website sends unwanted alerts, change that site's notification permission. The scope checklist and diagnosis table help identify the sender before editing. The companion video uses labelled illustrative Chrome diagrams; no existing owner permission was changed for a recording.
Identify the source
Read the website name shown on an unwanted browser alert. Copy the exact hostname rather than guessing from the headline or icon. If the message appears inside a webpage, it may be a pop-up or page ad. If it comes from an installed app, Chrome's site permissions may not control it.
Block the chosen website
- In desktop Chrome, open Settings > Privacy and security > Site settings > Notifications.
- Locate the exact website in the allowed entries or open the site's own settings from its site-information control.
- Set Notifications for that site to Block. Recheck the hostname before applying it.
- Return to the settings and confirm that the selected site shows Block or is listed with blocked sites. Other sites' entries should remain separate.
The global notification default affects a broader set of sites. Leave it as it was for this one-site exercise. Chrome may automatically restrict some intrusive sites or old grants, but verify the explicit state of the site you chose.
| Symptom | Where to look |
|---|---|
| Browser alert names a website | That website's notification permission |
| Window or ad appears inside a tab | Pop-ups, redirects, or the page itself |
| Desktop alert names an installed app | App or operating-system settings |
Swipe or scroll sideways to see every table column →
Why did the alert continue after blocking? Confirm the exact sender. A different subdomain, another browser profile, an installed app, or page content may be responsible.
Can I reverse the block? Yes. Return to the same site's notification permission and choose an allowed state when you want its alerts again.
Does this delete site data? No. Notification permission and cookie/site-data removal are different controls.
Sources and verification
Google's Chrome notifications guide documents the Settings > Site settings > Notifications path and site controls. Its pop-up guide covers a different symptom. Reviewed 11 October 2026. Exact control labels can vary by Chrome release and operating system; no existing owner notification grant was altered while preparing this guide.
Practice downloads.
The exercise files contain invented information. Save a local copy before editing.