Click on the downloaded file and follow the simple onscreen instructions to complete the process. Go to Firefox’s official website and download the Firefox installer. Scroll down to Firefox and click on it. Press the Windows+ Ikeys to the Settings app. Now, you can check if the issue is fixed. Restarting Firefox in Troubleshoot Mode will help you launch the browser with all themes, extensions, and custom settings disabled. Now, click the Restart button when prompted to confirm the action.Ĭorrupt extensions or downloaded themes might be the reason for high CPU usage on startup on the Firefox browser. 
Launch Firefox and click the menu button (three horizontal lines) at the top right corner. How to stop Firefox’s high CPU usage on startup 1.1. Microsoft Edge is another browser that comes close on Windows PC for minimal CPU usage.įree Download How do I stop my browser from using so much CPU? 1. This little resource usage is why it is one of the best browsers for old and slow PCs. Enabling these features will result in peak browser performance with minimal impact. Not only that, but you can also customize how much bandwidth your browser is allowed to use. The app is lightweight, to begin with, but it has intuitive CPU and RAM limiters to lower usage even more. The browser consumes fewer resources despite packing a series of excellent features. The best modern browser with the least CPU usage is undoubtedly Opera GX. For example, if you open too many tabs at once, it will result in resource hogging.Īlso, video streaming activities and using too many browser extensions can be the cause of the problem.įinally, it can be purely down to your browser either by default requirement, wrong settings, or the presence of corrupt files, especially the high resource usage at startup. 
Most times, your browser records high CPU usage due to its activities. This guide will show you how to solve the problem effectively on different browsers. This slows down your PC considerably and causes a series of problems. While it’s true that there are browsers with low memory usage, some are known to use high CPU either on startup or during browsing sessions. However, they shouldn’t be using too many valuable resources.
Home › Browsers › Fix Your Browser’s High CPU Usage on Startup īrowsers are one of the most important apps on PCs.
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