Share this article
Latest news
With KB5043178 to Release Preview Channel, Microsoft advises Windows 11 users to plug in when the battery is low
Copilot in Outlook will generate personalized themes for you to customize the app
Microsoft will raise the price of its 365 Suite to include AI capabilities
Death Stranding Director’s Cut is now Xbox X|S at a huge discount
Outlook will let users create custom account icons so they can tell their accounts apart easier
Firefox will no longer push your CPU past the breaking point
2 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
Share this article
Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more
Key notes
After the massive print nightmare episode, you would think Microsoft has learned to better manage issues that its systems are still dealing with.
On that note, know that you won’t have to worry anymore about a bug affecting Mozilla products on Windows operating systems, after more than half a decade.
Speaking of Mozilla, the company promised its usersmore privacy through MAC and VPN. Also, if you are using Firefox and run into theCouldn’t Load XPCOMerror, we can show you what to do.
Microsoft and Mozilla team up to fix this CPU problem
As we’ve said in the beginning, it would seem that a bug nearly half a decade old has finally been fixed by Microsoft and Mozilla.
This annoyingissuewas related to the Windows Defender and its Antimalware Service Executable (MsMpEng.exe) service which would lead to high CPU usage on Mozilla Firefox.
And, as a result, resource usage was noticeably higher compared to other browsers such as Google Chrome and Microsoft Edge.
As you can see from the screenshot below, taken at the time of initial reporting of the bug, you can see average CPU usage when reloading YouTube six times.
However, you no longer have to worry about such scenarios. The bug was recentlyresolvedby the efforts of Microsoft and the Mozilla development team.
According to the Redmond tech giant, this will be deployed to all users as part of regular definition updates, which are packaged independently from OS updates.
This even includes systems such as Windows 7 and 8.1, even though these platforms should not have had the performance issue with Firefox.
Why? Well, it’s because developers said that the ETW events that cause it do not exist on these older versions of Windows. Clearly, Windows 10 and Windows 11 users were the most affected.
Later, it was announced that the recent Microsoft Defender March-2023 definition update (Platform: 4.18.2302.x | Engine: 1.1.20200.4) fixed the issue.
Also, apparently, it has also been found that there is further scope for improvements to the processor usage in Firefox when compared to Chrome.
It’s not excluded to see such performance improvements in upcoming browser updates and it won’t just be exclusive to Microsoft Defender alone.
have you had to deal with this annoying issue on your Mozilla Firefox browser? Share your thoughts with us in the comments section below.
More about the topics:Windows 11 Software & Apps
Alexandru Poloboc
Tech Journalist
With an overpowering desire to always get to the bottom of things and uncover the truth, Alex spent most of his time working as a news reporter, anchor, as well as TV and radio entertainment show host.
A certified gadget freak, he always feels the need to surround himself with next-generation electronics.
When he is not working, he splits his free time between making music, gaming, playing football, basketball and taking his dogs on adventures.
User forum
0 messages
Sort by:LatestOldestMost Votes
Comment*
Name*
Email*
Commenting as.Not you?
Save information for future comments
Comment
Δ
Alexandru Poloboc
Tech Journalist
With a desire to always get to the bottom of things and uncover the truth, Alex spent most of his time working as a news reporter.
