Edge uses 100% CPU on macos

WCR 200

On M4 16 500 and only 20 tabs I get 100% CPU usage. Build 144.0.3719.82

George Kappel 30 Reputation points

2026-01-22T18:43:27.72+00:00

Seeing the same issue on Mac OS with MS Edge Version 144.0.3719.82. "Browser Task Manager" reporters the Browser is using 100%
WCR 200 Reputation points

2026-01-22T21:04:56.05+00:00

Temporary solution: Opening the previous version in /Users/~/Library/Application Support/Microsoft/EdgeUpdater/apps/msedge-stable/
Kay 5 Reputation points

2026-01-26T07:17:15.5466667+00:00

/Users/~/Library/Application Support/Microsoft/EdgeUpdater/apps/msedge-stable/

I don't have this location
WCR 200 Reputation points

2026-01-26T10:57:31.81+00:00

Kay, the ~ in my example should be filled with your username, found in the Users folder. If you did that and still can't find the folder, you might have a fresh or a faulty install.
Pisarnwate Jitvimol 0 Reputation points

2026-01-26T16:47:22.5733333+00:00

same here M1 Max 16 inch 32gb , i just got edge high power consumption issue mid jan 26 and found this thread. I'm now following WCR comment.
Matt Kramer 0 Reputation points

2026-01-27T14:57:29.9066667+00:00

Updating to version 144.0.3719.92 fixes this for me. Updated when going to Settings > About Microsoft Edge.
Onboard3462 20 Reputation points

2026-01-27T15:25:13.7633333+00:00

I experienced the issue with version 144.0.3719.92 and the previous version as well.
Scott 0 Reputation points

2026-01-27T16:10:47.3733333+00:00
I'm on Tahoe 26.2 with Version 144.0.3719.92 (Official build) (arm64).

~/Application Support/Microsoft does not have an /EdgeUpdater directory.

~/Application Support has

Microsoft (again, no EdgeUpdater)

Microsoft Edge

Microsoft Edge Beta

Microsoft Edge Canary

Microsoft Edge Dev

I have hidden files enabled.

Curious if that means the later versions of Tahoe/Edge don't have the EdgeUpdater?
Jon Lin 20 Reputation points

2026-01-27T16:20:55.53+00:00

Open Activity Monitor, search for EdgeUpdater, then invoke an update check in Edge. You may find its path there. (I'm using macOS 15.7.3.)
Scott 0 Reputation points

2026-01-27T16:54:36.42+00:00

Jon, that did it.

Here is the full path:

'/Library/Application Support/Microsoft/EdgeUpdater/145.0.3785.0/EdgeUpdater.app/Contents/MacOS/EdgeUpdater'

The trick is WCR (who is right in his answer) had the pathway from the username.

'/Users/~/Library/Application Support/Microsoft'

You have to go from the root if you're using WCR's suggestion (again, no shade):

'/Library/Application Support/Microsoft/EdgeUpdater'
Jon Lin 20 Reputation points

2026-01-28T01:21:22.5333333+00:00

It seems this is one of the changes in macOS 26. I previously wrote a detailed step-by-step guide on the second page of this issue.
Mr Peanutbutter 0 Reputation points

2026-01-28T02:43:36.3733333+00:00

I have the same problem on my Macbook Air M3 13 inch 8 GB, macOS 26.2, edge version 144.0.3719.92 and 144.0.3719.104. 100 % CPU usage
Onboard3462 20 Reputation points

2026-01-28T21:33:18.4833333+00:00
Pisarnwate Jitvimol 0 Reputation points

2026-01-29T07:26:48.59+00:00

as Onboard3462 post : I have to disable "Use graphics acceleration when available" and also restart edge to temporary fix cpu 100%. This should be temp solution, not fix yet.

edge://settings/?search=Use+graphics+acceleration+when+available
Kleidi Kumbaro 11 Reputation points

2026-01-30T18:31:27.2933333+00:00

same here. mac os 26.2 edge Version 144.0.3719.92 (Official build) (arm64)
Matt Kramer 0 Reputation points

2026-01-30T18:38:01.18+00:00

Looks like there's a new arm64 Edge build... so far so good
Fanana 0 Reputation points

2026-01-31T08:33:33.51+00:00

I have the same issue of 100% CPU utilization on my M1 Macbook Air, leaving this comment in hopes that Microsoft patches this as soon as possible. Having my mac overheat and quickly drain battery just because of a browser software issue is a massive problem.
Thuan Nguyen 0 Reputation points

2026-01-31T17:42:41.6733333+00:00

same here for Macbook Pro M4 Pro 48GB 512, never experienced this before, only after updating to the new version a couple days ago.
Kay 5 Reputation points

2026-02-01T03:11:23.75+00:00

Is this bug still present on version 144.0.3719.104?
Onboard3462 20 Reputation points

2026-02-01T09:30:03.14+00:00

Same issue in 144.0.3719.104, the screenshot is below.
Jon Lin 20 Reputation points

2026-02-02T09:58:37.09+00:00

Download URL for version 143: https://msedge.sf.dl.delivery.mp.microsoft.com/filestreamingservice/files/baac52e6-2ffc-4cf9-a792-93bcb485bdc9/MicrosoftEdge-143.0.3650.139.dmg

21 answers

AI answer

2026-01-22T07:38:31.11+00:00
High CPU usage in Microsoft Edge on macOS can be caused by several factors, including the number of open tabs, the content being rendered, and the overall performance of the Mac. Here are some suggestions to help mitigate the issue:

Optimize Tabs: If you have many tabs open, consider closing those that are not in use. Each tab consumes resources, and heavy websites can significantly increase CPU usage.

Check for Extensions: Extensions can sometimes cause performance issues. Try disabling them to see if that reduces CPU usage.

Update Edge: Ensure that you are using the latest version of Microsoft Edge, as updates often include performance improvements and bug fixes.

Hardware Acceleration: Make sure that hardware acceleration is enabled in Edge settings, as this can help improve performance by offloading tasks to the GPU.

Clear Cache: Regularly clearing your browser cache can help improve performance, especially if it has become bloated over time.

Monitor Resource Usage: Use Activity Monitor on macOS to check which processes are consuming the most CPU and memory, which can help identify specific issues.

If the problem persists, consider reaching out to Microsoft support for further assistance, as they may have more specific troubleshooting steps for your situation.

References:

WebView2 end-user FAQ

Release notes for Microsoft Edge Stable Channel
AI-generated content may be incorrect. Read our transparency notes for more information.
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Sylvester Pillay 10 Reputation points

2026-01-23T05:59:24.95+00:00

Following WCR comment, the usage went from over 100% to under 10%.. huge difference. I was also on build Build 144.0.3719.82 and rolled back to 143.0.3650.139
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Michael Kunde 0 Reputation points

2026-01-23T09:24:11.1966667+00:00

Same problem here with mac book pro m2 pro, 32 GB RAM
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DongLin Chen 35 Reputation points

2026-01-25T02:07:59.4933333+00:00

Same problem with MBA m3, 16 GB RAM, Tahoe 26.2
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Edge uses 100% CPU on macos

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