An extension’s website permissions can be broader than its useful job. A focused audit helps reduce access without breaking daily browsing.

Inventory before disabling

In Safari → Settings → Extensions, list extensions you recognize and use. For each one, read its description and website access settings. Remove an extension you no longer need; disable an uncertain extension temporarily while you check its developer and update history.

Narrow website access

Safari lets you control which websites an extension can access. An “all websites” grant is powerful: for some extensions it allows reading and altering content across pages you visit. A single-site utility usually does not need that scope. Prefer a per-site grant when the function permits it and test the sites where you actually use the extension.

Check private browsing and profiles

Private browsing has separate extension behavior; Safari disables extensions needing website access in private windows by default in supported macOS versions. Check each profile you use, since an extension you disabled in your work profile may still be active elsewhere. A profile helps organization but is not a reason to grant broad access.

Investigate suspicious behavior

Unexpected search redirects, new toolbars, or a permission prompt after an update warrant a review. Disable extensions one by one and reload the page; do not respond to a webpage that asks you to run a Terminal command to “verify” the browser. If the problem persists with all extensions off, look at Safari website settings and Mac login items too.

Keep a light routine

Repeat the audit after installing an extension, after a major browser update, and whenever an extension changes permissions. The practical goal is a short list of tools whose publisher and scope you understand.

The practical permission test

Ask whether the extension genuinely needs to see all webpages or only the one where you use it. A password manager may need broader access to offer autofill; a tool that changes one shopping site probably does not. Restrict it to selected sites when possible, then open those sites and test the intended function. If it breaks, adjust the one permission you need instead of granting blanket access by habit.

Publisher and update checks

An App Store listing and a familiar icon are useful clues, but also look at the developer name and whether the extension still solves a real problem. Revisit permissions after significant updates because new capabilities can change its access request. If a tool suddenly wants to read every site or inject content, read its explanation and privacy policy before approving. Removing an unused extension reduces both privacy exposure and troubleshooting noise.

A browser reset without losing data

When an unexpected page appears, first disable extensions and test the same URL in a new tab. Then review Safari’s Websites settings for notification, camera, microphone, and download permissions. Clear one site’s data if the issue is site-specific; a blanket history wipe can sign you out everywhere and hide useful diagnostic clues. If another browser behaves normally, compare its extensions and DNS settings before blaming macOS.

Before you change system settings

Make a backup, note what you changed, and follow your organization’s policy on managed Macs.

Apple documentation