ByMicrosoft has released Edge Stable version 144.0.3719.115, fixing a long-standing issue on macOS where one CPU core would reach 100% utilization during normal browsing. This situation caused problems such as overheating, loud fan noise, and performance degradation for a large number of Mac users. With the new update, we see that resource consumption is back under control and system stability has improved.
The significance of this release is not limited to a simple bug fix; it’s a crucial improvement for users who rely on Edge for professional workloads, multitasking, and long browsing sessions.
100% CPU Usage on macOS: The Real Impact of the Problem
A single core reaching full saturation on a MacBook is not a trivial event. As soon as this situation occurs, the system’s thermal management kicks in, increasing fan speed, draining the battery quickly, and affecting the responsiveness of other applications. Many users reported unusual resource spikes even during light tab usage, simple web pages, and video playback.
As a result:
Laptop temperatures remained consistently high
Background tasks slowed down
Lag was observed in tasks like video calls or editing
Concerns about long-term hardware stress increased
After the new patch, we see these conditions returning to normal levels.
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Community Reports: Growing Complaints on Forums and Reddit
This problem was first brought to light by users themselves on a large scale. A user on Microsoft’s official support forum reported that their M4-based 16-inch MacBook was showing consistently high CPU usage with Edge. This post received dozens of upvotes, making it clear that this was not an isolated case but a widespread issue. Similarly, people wrote in separate threads on Reddit that:
The fan starts running fast even with only a few tabs open
The temperature drops immediately after closing the browser
Edge appears at the top of the Activity Monitor
These reports establish the severity of the problem.
Caught during testing, yet still reached the stable version
Interestingly, a community member identified this bug two months ago during the testing phase. Despite this, the fix was not implemented in time, and the problem eventually reached the stable channel. This caused affected users to experience unnecessary hardware load for an extended period.
The fix provided in version 144.0.3719.115 finally implements that pending correction.
The fix is documented in the official changelog
Microsoft clearly stated in its update notes:
> “Fixed a macOS issue that caused Microsoft Edge to fully saturate one CPU core under certain conditions.”
This brief line represents the solution to the widespread problem that users had been experiencing for months.
Edge 144 Series: Continuous Improvements and Enterprise Updates
Even before this build, several significant changes were made in the 144 series. We see these releases as a continuous improvement cycle that focuses on both feature additions and stability.
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Version 144.0.3719.104
Cross-platform policy management for macOS, iOS, and Android
Fixes for Conditional Access sign-in issues
Version 144.0.3719.92
Fix for rendering issues in SAP GUI apps based on WebView2
Version 144.0.3719.82
New WebGL backend, powered by the company’s Windows Advanced Rasterization Platform (WARP)
Replacement of SwiftShader
Tenant restrictions for enterprise users
Copilot toolbar visibility control
This series of updates demonstrates that the browser is continuously being equipped with new capabilities and controls. WARP-Based WebGL: A Shift in Graphics Processing
Shifting the WebGL backend to WARP is more than just a technical change. It delivers rendering consistency, improved compatibility, and a more predictable performance profile. This change is particularly beneficial in enterprise environments where standardized output is crucial.
Copilot and Admin Controls: Empowering Business Users
Features like tenant restrictions and toolbar visibility give organizations the power to determine which AI or cloud capabilities are available and at what level. This results in:
Improved data governance
Easier maintenance of compliance requirements
Scalable and controlled user experiences
What’s New for Mac Users
After installing version 144.0.3719.115, we observed the following improvements:
Stable CPU usage in Activity Monitor
Reduced unnecessary fan noise
Improved battery life
Smoother multitasking
Better temperature control during long sessions
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This update brings a noticeable difference in daily use.
How to ensure the update is applied
Make sure your browser is running the latest stable build. You can check the version by going to Settings → About Microsoft Edge. If an update is available, the patch will be activated after installation and a restart.
Conclusion: A decisive step towards stability
Addressing issues like CPU hogging on macOS brings significant relief to Edge users. This improvement is now widely available after community feedback, reporting, and a continuous update cycle. Additionally, other features in the 144 series make the browser more enterprise-ready, more controlled, and graphically consistent.
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Source: neowin.net
It’s great to see Microsoft addressing a long-standing issue like this. The improved system stability in this update will definitely be a relief for anyone using Edge on macOS, especially those who do a lot of multitasking or work on resource-intensive tasks.