How to Fix Chrome Extensions Slowing Down Browsing

What Causes This?

Chrome extensions run alongside your browser and can consume CPU, memory, and network resources while pages load. A poorly coded, outdated, or conflicting extension can slow down tab performance, delay page rendering, or make Chrome feel unresponsive. The problem is often worse when you have many extensions installed or when multiple extensions try to modify the same websites.

Common Symptoms

• Pages take much longer than usual to load in Chrome
• Chrome uses high CPU or memory even with only a few tabs open
• Scrolling, typing, or switching tabs feels laggy
• Chrome starts quickly but becomes slower after a few minutes
• Disabling one extension suddenly makes browsing feel normal again

How to Fix It Manually

1. Check whether Chrome extensions are using too many resources

   1. Open Chrome.
   2. Press Shift + Esc to open Chrome’s built-in Task Manager.
   3. Click the Memory footprint, CPU, or Network column to sort usage.
   4. Look for extensions using unusually high resources, especially when you are not actively using them.

2. Test Chrome without extensions

   1. In Chrome, click the three-dot menu in the top-right corner.
   2. Go to Extensions > Manage Extensions.
   3. Turn off every extension using the toggle switch.
   4. Close Chrome completely, then reopen it and browse a few sites.
   5. If Chrome feels faster, one or more extensions are likely causing the slowdown.

3. Find the problematic extension

   1. Return to chrome://extensions/.
   2. Re-enable one extension at a time.
   3. After enabling each one, browse normally for a minute or two.
   4. When the slowdown returns, the last extension you enabled is the likely cause.
   5. If the issue only appears when two specific extensions are enabled together, you may be dealing with an extension conflict.

4. Update or remove the extension

   1. On the Extensions page, identify the extension causing the problem.
   2. Click Remove if you do not need it.
   3. If you want to keep it, visit the Chrome Web Store page for that extension and check for recent updates or known issues.
   4. You can also replace heavy extensions with lighter alternatives that do the same job.

5. Clear Chrome’s cached data

   1. Press Ctrl + Shift + Delete in Chrome.
   2. Set Time range to All time.
   3. Check Cached images and files.
   4. Click Delete data.
   5. Restart Chrome and test browsing speed again.

6. Check Windows for background strain

   1. Open Task Manager with Ctrl + Shift + Esc.
   2. On the Processes tab, look for high usage from Google Chrome or other apps running at the same time.
   3. Close unnecessary background programs that may be competing for RAM or CPU.
   4. If Chrome is still slow only when certain extensions are enabled, the extensions remain the most likely cause.

7. Reset Chrome settings if the problem continues

   1. In Chrome, open Settings.
   2. Click Reset settings on the left.
   3. Select Restore settings to their original defaults.
   4. Confirm the reset.
   5. Reinstall only the extensions you actually need.

Fix It Automatically with Kudu

Kudu can scan your PC for browser add-ons and background processes that are dragging down Chrome performance. Instead of manually testing extensions one by one, it helps pinpoint what is causing the slowdown and removes unnecessary system strain so browsing feels responsive again.

Download Kudu Free →