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

heru prasetia 0 Reputation points

2026-01-29T08:14:40.63+00:00

same problem on mac pro m1 8gb. make my mac hot just open some tabs, and not running other application
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Jackson 5 Reputation points

2026-01-28T07:11:42.2133333+00:00

just wanted to add that you can restart your browser (restoring your tabs) with edge://restart.
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Duane Reed 1 Reputation point

2026-01-27T16:34:46.8066667+00:00

Version 144.0.3719.92 (Official build) (arm64) of Edge has been released and so far, it seems to resolve the issue. Hoping it sticks.
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Tomasz Wu 0 Reputation points

2026-01-27T19:40:05.64+00:00

It's not working for me (on x64`). Still over 100% of the CPU on the main process after a while. I've downgraded it, and I'll see if there's some improvement.

Jackson 5 Reputation points

2026-01-28T07:08:45.59+00:00

yeah, still seeing this (arm64)

:(

Onboard3462 20 Reputation points

2026-01-28T21:35:03.78+00:00
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J Muzhen 40 Reputation points

2026-01-27T14:26:41.4833333+00:00

Same problem here, but I have discovered that turning "Use graphics acceleration when available" off solved the issue, at least for now.

An educated guess - there may be some issue with the GPU process (WindowServer).
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8 people found this answer helpful.
ElViejo1978 0 Reputation points

2026-01-29T15:50:34.9666667+00:00

This helped me to resolve the issue of high cpu usage on main process

Augustin Thomas 0 Reputation points

2026-01-30T11:45:25.88+00:00

this solved it for me .

Kleidi Kumbaro 11 Reputation points

2026-01-31T19:14:53.89+00:00

guess this solved it for me tooEDIT!

Guess not. After a restart edge quiets down but then after sometime it does jump again the CPU to 101.

Caffeine Cat 0 Reputation points

2026-02-02T11:54:54.34+00:00

Thanks a lot, my MacBook Air finally got cool.

Kleidi Kumbaro 11 Reputation points

2026-02-17T18:33:03.8366667+00:00

Updating to the latest version finally did solve the issue for me.

Version 145.0.3800.58 (Official build) (arm64)
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Jon Lin 20 Reputation points

2026-01-26T11:15:37.0066667+00:00
Supplement to WCR's solution:

Previous versions path:

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

or

/Users/{your_user_name}/Library/Application Support/Microsoft/EdgeUpdater/apps/msedge-stable/

Make sure your_user_name is replaced with your actual user name :D
Detailed steps:
1. Copy the old version before 144.0.3719.82 like 143.0.3650.139 to /Applications/, then rename it to Microsoft Edge_143.app. (The newly updated 144.0.3719.92 also has the same problem.)
2. Quit Microsoft Edge.app.
3. Open Microsoft Edge_143.app.
4. Your opened tabs will remain.
5. If you have a process-level firewall, ensure that EdgeUpdater is not allowed to access the network to prevent automatic updates. (Path: ~/Library/Application Support/Microsoft/EdgeUpdater/145.0.3785.0/EdgeUpdater.app/Contents/MacOS/EdgeUpdater on macOS 15.7 Apple Silicon) Or try Stop Microsoft Edge Auto Update | MacRumors Forums.
If the previous version's packages were deleted or auto-updated by accident

download 143 from https://msedge.sf.dl.delivery.mp.microsoft.com/filestreamingservice/files/baac52e6-2ffc-4cf9-a792-93bcb485bdc9/MicrosoftEdge-143.0.3650.139.dmg
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Thomasx 10 Reputation points

2026-02-05T02:05:24.7766667+00:00

Thank you. that works like a charm with no more auto update too.

Hennadii Radzikhovskyi 0 Reputation points

2026-02-06T15:33:37.12+00:00

Hello! Could you explain please where I shoud paste that path? And where I can see my user name?
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Edge uses 100% CPU on macos

21 answers

If the previous version's packages were deleted or auto-updated by accident

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