How to Manage Browser Extensions Safely on Chrome and Safari in the US

Browser extensions are small add-ons that can block ads, check grammar, save passwords, or change how a website looks. They are also one of the easiest ways to give a stranger deep access to your browsing. A useful extension can read pages you visit, see what you type in some cases, and run in the background every time you open your browser. That is why a quick review, done every few months, is worth the effort.

This guide covers Chrome on a computer and Safari on Mac, iPhone, and iPad. The exact menu names can vary slightly in most recent versions, but the steps below follow the layouts most US users will see. You do not need any special software, and you should not pay for a tool that promises to clean up extensions for you.

Step 1: Open your extension list and take stock

Start by seeing everything you have installed. In Chrome on a computer, click the three-dot menu, then Extensions, then Manage Extensions. You will see a card for each extension, with its name, a short description, and a toggle to turn it on or off.

On a Mac in Safari, open Safari, then Settings, then Extensions. On an iPhone or iPad, open Settings, then Safari, then Extensions. Mobile Safari supports a smaller set of extensions than desktop browsers, so your list may be short. That is normal, and it is still worth checking.

Read through the list slowly. Many people are surprised by what they find: an extension installed for one task years ago, a shopping coupon tool added during checkout, or a duplicate of another tool that does the same job. If you do not recognize a name, or you cannot remember why you installed it, treat it as a candidate for removal rather than keeping it just in case.

Step 2: Remove anything you no longer use

Unused extensions are pure risk with no benefit. They can still update in the background, they can still request access, and they can slow down page loads. Remove them instead of only turning them off, unless you have a clear plan to use one again soon.

In Chrome, click Remove on the extension card and confirm. In Safari on Mac, select the extension and click Uninstall, or turn it off first if you want to test life without it for a week. On iPhone and iPad, you can turn an extension off from the Safari Extensions screen, and delete the companion app from the Home Screen if you want it fully gone.

Step 3: Check permissions for the extensions you keep

For each extension you keep, check what it is allowed to do. In Chrome, click Details on the extension card. Look for site access settings, which control whether the extension can read and change data on all sites, on specific sites, or only when you click it. Where possible, choose the narrowest option that still lets the extension work.

A password manager or an ad blocker may reasonably need broad access to do its job. A coupon finder, a theme, or a simple new-tab page usually does not. If an extension asks for access to all sites but its job only involves one site, that is a reason to pause and reconsider. The same logic applies to permissions such as reading browsing history or managing downloads. Match the permission to the task, and be skeptical of anything that seems out of proportion.

In Safari, extension permissions are more limited by design, and the browser will often ask before an extension can access a particular website. Pay attention to those prompts instead of tapping through them. If a prompt appears on a site where the extension has no business running, deny it for that site.

Step 4: Install only from the official store and check the developer

When you need a new extension, get it from the Chrome Web Store for Chrome or the App Store for Safari. Avoid download links from random websites, pop-up ads, or files shared in forums, even if the extension name looks familiar. Copycat extensions are a known trick: the name and icon look right, but the developer is different.

Before installing, check the developer name, the number of users or ratings where shown, and the most recent update date. A long-abandoned extension may still work, but it may also miss security fixes for newer browser versions. Read a few recent reviews, and look for complaints about unexpected ads, changed search settings, or new permission requests after an update. A single complaint may mean little, but a pattern is a warning.

Step 5: Watch for signs that an extension has gone bad, and keep a routine

Extensions can change hands. A trusted tool can be sold to a new owner, updated with new tracking, or bundled with features the original developer never promised. That is why a one-time review is not enough.

Watch for changes such as a different default search engine, extra ads on pages that did not have them before, pop-ups, a slower browser, or permission prompts that appear out of nowhere. If your browser starts behaving oddly after an update, turn off recently updated extensions one at a time until the problem stops. Then remove the suspect and look for a replacement from a developer you trust.

Frequently Asked Questions

Do browser extensions slow down my computer?
They can, especially if many run at once or if one is poorly built. Each active extension uses memory and can add work to every page load. Removing unused extensions and keeping only the ones you use is often the fastest fix for a sluggish browser.

Is it safe to keep an extension turned off instead of removing it?
Turning an extension off stops it from running, but it remains installed and can be turned back on or updated. If you are sure you will not use it again, removing it is safer and cleaner. Keep it only turned off when you are testing whether you miss it.

Can an extension steal my passwords?
An extension with broad page access could, in theory, see data on pages you visit, which is why permissions matter. Stick to well-known developers, install only from the official store, limit site access where possible, and use a reputable password manager rather than letting random extensions handle logins.