Google Chrome extensions are brilliant little software modules that add massive functionality to your browser, like blocking advertisements, managing passwords, or checking your grammar. However, if a developer abandons an extension, or if you accidentally install a malicious extension disguised as a helpful tool, they can absolutely destroy your browsing experience. They can inject pop-up ads into every website you visit, secretly log your keystrokes, or cause Chrome to consume 100% of your computer’s RAM, causing the browser to constantly crash.
If Chrome is behaving erratically, the absolute first troubleshooting step you must take is to completely disable all of your extensions to see if the problem disappears.
Method 1: How to Disable an Extension (Non-Destructive)
Disabling an extension acts like an “off switch.” It shuts down the software and prevents it from interacting with your browser, but it does not delete your saved settings or account data. You can easily turn it back on later.
- Open Google Chrome.
- Look at the extreme top right corner of the window, just to the right of the address bar. Look for an icon that looks like a jigsaw puzzle piece. Click it.
- A drop-down menu will appear showing all your active extensions. At the very bottom of this menu, click Manage extensions.
- You will be taken to a new page (
chrome://extensions) that displays a massive grid of every single extension installed on your browser. - Look for the small blue toggle switch in the bottom right corner of each extension’s box.
- Click the switch. It will slide to the left and turn grey. The extension is now completely disabled and physically cannot execute code in the background.
Method 2: How to Uninstall an Extension (Permanent Deletion)
If you have identified that a specific extension is malicious, or if you simply haven’t used an extension in two years and want to free up memory, you must uninstall it completely.
- Navigate back to the main extensions manager page (click the jigsaw puzzle piece > Manage extensions).
- Locate the specific extension you want to destroy.
- Instead of clicking the toggle switch, click the Remove button located at the bottom left of the extension’s box.
- A small pop-up box will appear in the top right corner of the screen asking “Remove [Extension Name]?”
- Click the blue Remove button to confirm.
The extension is instantly deleted from your hard drive.
The “Incognito Mode” Troubleshooting Trick
If you suspect an extension is breaking a specific website (for example, a banking website refuses to load because it thinks your ad-blocker is a virus), you do not need to disable all your extensions just to log in. You can use Incognito Mode.
By default, Google Chrome physically blocks all extensions from running in Incognito Mode to protect your privacy.
- Press Ctrl + Shift + N on Windows, or Cmd + Shift + N on a Mac.
- A dark grey Incognito window will open.
- Navigate to the broken website.
If the website suddenly works perfectly in Incognito Mode, you have mathematically proven that one of your extensions is causing the problem. You must then return to normal mode, open the Extensions manager, and disable them one by one until you identify the culprit.