Chrome extensions can turn your browser into anything – a writing tool, an ad blocker, a productivity tracker, a password manager. The catch – bad extensions can also slow Chrome, steal data, or hijack your search results. Knowing how to install, manage, and audit them matters.
Here's how to use Chrome extensions safely and effectively.
Install an extension
Go to the Chrome Web Store at chromewebstore.google.com. Search for what you want. Click an extension to see its details page.
Click Add to Chrome. A popup shows what permissions the extension wants. Read these carefully. Click Add extension if you're comfortable.
The extension installs in seconds. An icon usually appears next to the address bar.
Manage installed extensions
Click the puzzle piece icon in the top right of Chrome. You see all installed extensions. Click Manage Extensions at the bottom.
The full management page shows each extension with:
- On/off toggle – temporarily disable without uninstalling
- Details button – see what permissions it has
- Remove button – uninstall completely
- Site access dropdown – limit which sites the extension can run on
Use this page to clean up extensions you don't use. Most people accumulate dozens over time without thinking about it.
Restrict extension site access
By default, many extensions can read every site you visit. That's a privacy risk. You can limit them.
On the Manage Extensions page, click Details for any extension. Look at Site access. Three options:
- On click – extension runs only when you click its icon
- On specific sites – works only on sites you specify
- On all sites – default, most permissive
For shopping or coupon extensions, "On specific sites" is safest. For ad blockers, you need "On all sites" or they won't work.
Useful extensions worth installing
| Extension | What it does |
|---|---|
| uBlock Origin | Best free ad blocker |
| Bitwarden | Free open-source password manager |
| Grammarly | Real-time writing corrections |
| Dark Reader | Dark mode for any site |
| OneTab | Save and organize tabs |
| LeechBlock | Block distracting sites during work hours |
Don't install 20 extensions. Pick 3-5 you actually need. More extensions means slower Chrome.
Avoid sketchy extensions
Some extensions are spyware in disguise. Red flags before installing:
- Less than 10,000 users (most legit extensions have millions)
- Recently published with very few reviews
- Asks for permissions that don't make sense for what it does
- Developer name looks generic or hard to verify
- Promises something too good to be true (free Netflix premium, etc.)
Check the reviews carefully. Real users usually mention specific positives. Fake reviews tend to be vague and 5-star.
Pin extensions you use often
Extensions hide behind the puzzle piece icon by default. Pin the ones you use daily so they show directly in the toolbar.
Click the puzzle piece. Find the extension you want pinned. Click the pin icon next to it. The extension icon now stays visible next to the address bar.
Sync extensions across devices
Sign into Chrome with your Google account on all your devices. Extensions sync automatically. Install one on your laptop, it appears on your desktop.
To check what's syncing – Settings > You and Google > Sync and Google services > toggle on Extensions.
Extensions on Chrome mobile
Bad news – Chrome on Android and iOS doesn't support extensions. The mobile browser is a stripped-down version focused on speed.
If you need extensions on mobile, use a different browser:
- Firefox Mobile supports many desktop extensions on Android
- Kiwi Browser on Android runs full Chrome extensions
- Brave has some built-in features that replace common extensions
iOS browsers can't install third-party engines so extension support is limited there.
Audit your existing extensions
Once a year, go to chrome://extensions and review what's installed. Remove anything you don't recognize or no longer use.
Each extension uses some memory even when inactive. 30 extensions can make Chrome noticeably slower. Trim them down to your essentials.
What's your favorite Chrome extension? Tell me in comments. I'm always looking for good ones I missed.