The basic steps to install an extension
To add an extension to Chrome, you visit the Chrome Web Store, find the extension you want, click a button to add it, and Chrome installs it automatically. The whole process takes less than a minute. Once installed, the extension usually appears as a small icon in the top right corner of your browser, next to your address bar.
You do not need to restart Chrome or your computer. The extension is ready to use when ready after installation. Some extensions ask for permission to access certain parts of your browser or websites — you will see a popup asking you to confirm before the extension can work.
If you change your mind about an extension later, you can remove it just as easily. You can also turn extensions on and off without uninstalling them, which is useful if you want to keep an extension but do not need it running all the time.
Key Takeaways
- The Chrome Web Store is the official place to find and install extensions — do not read extensions from other websites, as they may contain malware.
- After you click "Add to Chrome", a popup asks you to confirm the permissions the extension needs, and installation happens automatically once you confirm.
- Installed extensions appear as icons in the top right corner of your browser window, and you can click them to open the extension's menu or settings.
- You can disable an extension without removing it by clicking its icon and toggling it off, or by going to your extensions list and clicking the toggle switch.
- If an extension stops working or causes problems, you can uninstall it from the same extensions list where you manage all your installed extensions.
Finding extensions in the Chrome Web Store
Open a new tab in Chrome and look for the "Apps" shortcut on the left side of the page, or go directly to chrome.google.com/webstore. You will land on the Chrome Web Store homepage, which shows featured extensions and categories like Productivity, Shopping, and Security.
Use the search box at the top to look for what you need. Type a description of what you want the extension to do — for example, "password manager" or "grammar checker" — and Chrome shows you matching results. Each result shows the extension's name, a short description, a star rating from other users, and how many people have installed it.
Click on any extension to see its full page. This page tells you what the extension does, shows screenshots or a video of it in action, lists what permissions it needs, and displays reviews from people who use it. Read the reviews and check the rating before you install, especially if the extension asks for broad access to your browsing.
Installing an extension step by step
Once you have found an extension you want, click the blue button that says "Add to Chrome". A popup appears asking you to confirm the permissions — this is Chrome's way of making sure you understand what the extension can access. The popup lists things like "Read and change your data on all websites" or "See your browsing history", depending on what the extension needs to work.
Read the permissions carefully. If they seem too broad for what the extension claims to do, you can click outside the popup to cancel and choose a different extension instead. If the permissions make sense, click "Add extension" to confirm. Chrome downloads and installs the extension when ready.
After installation, you will see a small notification in the top right corner saying the extension has been added. The extension's icon now appears in your toolbar — the row of icons to the right of your address bar. Some extensions also open a welcome page or settings screen so you can configure them before use.
Finding and managing your installed extensions
To see all your installed extensions at any time, click the puzzle-piece icon in the top right corner of Chrome (it looks like a small square made of colored pieces). A dropdown menu shows all your active extensions with their icons and names. You can click any extension from this menu to open it or access its settings.
For more detailed management, click the three vertical dots at the top right of Chrome, then go to "More tools" and select "Extensions". This opens a page showing every extension you have installed, along with toggles to turn each one on or off. You can also see how many permissions each extension has and when you installed it.
From this extensions page, you can disable an extension by clicking its toggle switch (it turns gray when off), or remove it entirely by clicking the trash icon. Disabling an extension stops it from running but keeps it installed, so you can turn it back on later without reinstalling. Removing it deletes the extension completely.
Controlling what extensions can access
By default, most extensions can only run on the websites you visit — they cannot see your passwords or access your entire browsing history. However, some extensions ask for broader permissions, and you control how much access they get. On the extensions management page, click "Details" under any extension to see its full permission list.
Scroll down to the "Permissions" section to see exactly what the extension can do. You will see options like "Read your browsing history" or "Modify data on all websites". Some extensions let you change these permissions — for example, you might restrict an extension to run only on certain websites instead of all websites. Click "On all sites" or "On specific sites" to adjust this.
If an extension asks for permissions that seem unnecessary for what it claims to do, that is a red flag. Uninstall it and find a different extension instead. Trusted extensions from well-known companies usually ask for only the permissions they actually need.
Troubleshooting extensions that do not work
If an extension stops working or does not appear to do anything, first check that it is turned on. Go to your extensions list, find the extension, and make sure its toggle switch is blue (on) rather than gray (off). If it is already on, try turning it off and back on again — this often fixes temporary problems.
Next, check whether the extension is supposed to work on the website you are visiting. Some extensions only work on certain sites. For example, a shopping extension might only work on retail websites, not on social media. Look at the extension's details page to see which sites it supports.
If the extension still does not work, uninstall it and reinstall it fresh. Go to your extensions list, click the trash icon to remove it, then go back to the Chrome Web Store and add it again. This clears out any corrupted files and gives the extension a clean start. If it still does not work after reinstalling, try a different extension that does the same thing.
Keeping extensions safe and up to date
Chrome automatically updates your extensions in the background, so you do not need to do anything to keep them current. You can manually check for updates by going to your extensions page and clicking the "Update" button in the top left, but this is rarely necessary.
To stay safe, only install extensions from the official Chrome Web Store. Extensions on other websites may contain malware or spyware. Before installing any extension, check its rating and read recent reviews — if many people report that an extension changed behavior or started showing ads, that is a sign to avoid it.
Regularly review your installed extensions and remove any you no longer use. The fewer extensions you have running, the faster Chrome will be and the smaller your attack surface if a malicious extension somehow gets through. If you notice Chrome running slowly or websites behaving strangely, try disabling your extensions one by one to see if one of them is the cause.
Frequently Asked Questions
Can I use the same extension on multiple computers?
Yes. If you sign into Chrome with your Google account on another computer, your extensions sync automatically to that computer. You do not need to install them again. If you do not want an extension on a particular computer, you can disable it on that device without affecting your other devices.
What does it mean when an extension asks for permission to "read and change your data on all websites"?
This permission means the extension can see the content of every webpage you visit and modify what you see on those pages. Password managers and ad blockers need this permission to work. If a straightforward extension asks for this broad permission, that is suspicious — uninstall it and find one with more limited access.
Why did an extension I installed stop working?
Extensions sometimes break after Chrome updates, or the website they work with changes its design. Check the extension's reviews to see if others report the same problem. If many people say it is broken, the developer may have abandoned it. Try uninstalling it and finding a newer extension that does the same thing.
Can I install extensions on Chrome on my phone?
Chrome on Android and iPhone does not support extensions the way desktop Chrome does. Some extensions have mobile apps you can read separately, but most extensions only work on Chrome for Windows, Mac, and Linux. Check the Chrome Web Store page for the extension to see if a mobile version is available.
Is it safe to install extensions from the Chrome Web Store?
The Chrome Web Store is safer than downloading extensions from random websites, but not every extension on it is trustworthy. Google reviews extensions before they appear in the store, but malicious ones sometimes slip through. Check the rating, read recent reviews, and look at the developer's name — extensions from well-known companies are generally safer than those from unknown developers.