Adding an extension takes three steps: find it in the Chrome Web Store, click Add to Chrome, and confirm the permission request

Open Chrome and go to chrome.google.com/webstore. Search for the extension you want — for example, "Grammarly" or "LastPass" — and click the result. On the extension's page, click the blue Add to Chrome button in the top right. A popup will appear asking what permissions the extension needs (like access to your tabs or your browsing history). Read this carefully, then click Add extension to confirm. The extension will install immediately and usually appear as a small icon in the top right of your browser, next to the address bar.

After installation, most extensions are ready to use right away. Some will open a welcome page or ask you to sign in with an account. Others run silently in the background. You can click the extension icon anytime to open its menu or settings.

Key Takeaways

  • The Chrome Web Store is the only safe place to download extensions for Chrome — never install them from other websites.
  • When you click Add to Chrome, Chrome will show you exactly what data the extension can access before you confirm.
  • Extension icons appear in the top right corner of Chrome, next to the address bar, and you can click them to open settings or menus.
  • You can manage all your extensions by typing chrome://extensions into the address bar, where you can turn them on or off, remove them, or change their permissions.

Finding extensions in the Chrome Web Store

The Chrome Web Store is built into Chrome. Click the three vertical dots in the top right corner of the browser, hover over More tools, then click Extensions. At the bottom of that menu, click Open Chrome Web Store. You can also type chrome.google.com/webstore directly into the address bar.

Once you're in the Web Store, use the search box at the top to find what you need. Results show the extension name, a short description, a star rating, and how many users have installed it. Click any result to see the full page, which includes screenshots, a longer description, and reviews from other users. Read the reviews and permissions before you decide to install.

Understanding what permissions mean

When you click Add to Chrome, a popup shows what the extension is allowed to do. Common permissions include "Read and change all your data on websites you visit" (which means it can see what you're looking at) or "Read your browsing history" (which means it can see your history list). These permissions exist because some extensions need them to work — a password manager needs to see your login fields, and a grammar checker needs to read the text you're typing.

If an extension asks for permissions that seem too broad for what it does, you can refuse to install it. For example, a simple calculator should not need access to your browsing history. You are not obligated to install any extension, and Chrome will not judge you for declining.

Managing extensions after installation

Once installed, extension icons live in the top right corner of Chrome, to the left of your profile picture. If you have many extensions, some icons may be hidden behind a puzzle-piece icon. Click the puzzle piece to see all of them, and you can drag icons left or right to reorder them or hide the ones you use less often.

To see all your extensions at once, type chrome://extensions into the address bar and press Enter. This page shows every extension you have installed, whether it's turned on or off, and how many permissions it has. You can toggle the switch next to any extension to turn it off without removing it, or click the trash icon to uninstall it completely. Click Details on any extension to see its full permissions list and change which sites it can access.

Turning off an extension temporarily

If an extension is slowing down Chrome or causing problems, you can turn it off without deleting it. Go to chrome://extensions, find the extension, and click the toggle switch next to its name. The switch will turn gray, and the extension will stop running immediately. You can turn it back on the same way anytime.

Some extensions also have their own on-off switches in their settings menu. Click the extension icon in the top right, look for a settings or menu option, and you may find a toggle there as well. Either method works — turning it off in the extensions page or in the extension's own menu will have the same effect.

Removing an extension you no longer want

To uninstall an extension, go to chrome://extensions, find it in the list, and click the trash icon on the right side. Chrome will ask you to confirm, and once you do, the extension is gone. Its icon will disappear from the top right corner, and it will no longer run in the background.

You can also right-click an extension icon in the top right corner and select Remove from Chrome. This opens the same confirmation dialog. Either way, uninstalling does not delete your data — if you reinstall the extension later, you may need to sign in again or reconfigure your settings, depending on the extension.

Keeping your extensions safe

Only download extensions from the official Chrome Web Store. Fake extensions exist on other websites and can steal your passwords or data. If someone tells you to install an extension from a link that is not chrome.google.com/webstore, do not do it.

Check the reviews and user count before installing. Extensions with thousands of users and mostly positive reviews are generally safer than brand-new extensions with no reviews. If an extension suddenly changes what it does or asks for new permissions, you can uninstall it and find an alternative. You are in control — Chrome will not force you to keep an extension you do not trust.

Frequently Asked Questions

Can I use the same extension on multiple devices?

Yes, if you sign into Chrome with your Google account on multiple computers, your extensions will sync across all of them automatically. Go to Settings, click You and Google, and make sure Sync is turned on. Your extensions, bookmarks, and settings will appear on every device where you sign in.

What if an extension stops working?

First, try turning it off and back on by going to chrome://extensions and toggling the switch. If that does not help, uninstall it and reinstall it from the Chrome Web Store. If the problem continues, the extension may no longer be maintained by its creator, and you may need to find a different one that does the same job.

Do extensions slow down Chrome?

Some do, especially if you have many installed. Each extension uses a small amount of memory and processing power. If Chrome feels slow, try turning off extensions you do not use regularly, or uninstall ones you have not opened in weeks. You can always reinstall them later if you need them.

Can I use extensions in Chrome on my phone?

Chrome on Android and iPhone does not support most extensions the way desktop Chrome does. Some extensions have mobile apps you can download separately, but the Chrome Web Store extensions are designed for computers. If you need an extension's features on your phone, check if the creator offers a mobile app.