Firefox cpu usage. By following these steps, you can effectively reduce Firefox's memory and CPU usage, ensuring smoother performance and better system stability. May 29, 2025 · Firefox is a popular web browser known for its speed, security, and flexibility. Usually, when any browser runs multiple tabs, extensions, or themes, it alone takes up extreme CPU usage. Solve Firefox high CPU usage issue if Struggling with Firefox high CPU usage slowing down your computer? 🖥️ In this video, I’ll show you simple, step-by-step solutions to fix the issue and Discover why Firefox uses excessive CPU power and learn effective techniques to reduce its CPU usage, improving your overall browsing experience. Introduction: The SystemMother Board: Gigabyte B760M WIFI DDR4CPU: 12th Gen Intel® Core™ i5-12500Memory: 24GB DDR4GPU: No GPU Hard DrivesCache: Crucial/Micron Client SSDs 480 GB SATA 3. CPU and RAM demands: The lightest RAM usage isn’t always the lightest CPU usage. Quit and reopen Firefox to return to normal mode. I've noticed that two things generally stop it. To fix Firefox using too much of your system's CPU resources, you can tweak some of its settings and disable the majority of its resource-intensive extensions. There aren’t At times, Firefox may require significant CPU resources to display content. Keep these points in mind as you read through the comparison table below. We'll show you options for fixing this if this if it is happening too often. One of the most frustrating problems users report is high CPU usage, which can slow down the entire system, lead to fan noise, and cause Kill the Firefox process and restart it. Click the Extensions tab and choose Disable to temporarily turn off one extension. Check for problematic extensions and themes Extensions and themes can cause Firefox to use more system resources than it normally would. Is there anything in the current Firefox similar to the Task Manager in Google Chrome? (Shift + Esc) There is something that occasionally takes up enough CPU to make Firefox unresponsive - but with Disable an extension. Enter about:addons in the address bar to visit the Add-Ons Manager. . Not really sure why Firefox seems to be the instigator for high CPU usage, but it is, it's enough to make me use Chrome, very reluctantly. However, like any software, it can encounter issues that affect its performance. Is your computer sluggish when using Firefox? This might be caused by a memory leak. 3Parity: No parityArray Disk's: 8 x 4TB (mix of WD and Seagate)Ive been experiencing an issue for the last month or so where I see Download Speed Booster for ChatGPT: Fix Lag in Long Chats for Firefox. Firefox isn’t a heavy browser in itself, however, the system utilization depends on the processes running through it. If prompted to restart Firefox, do so. When one application has high CPU usage, it leaves fewer CPU resources for other applications. Using a browser that consumes a lot of CPU resources is never good, especially when you work with many different tabs open at the same time. [3] To fix the problem, right-click on the Firefox icon you click to start Firefox, click Properties, click the Compatibility tab, make sure the check box under Compatibility mode is unchecked, and restart Firefox. However, like any software, it is not immune to performance issues, including high CPU usage. Please check your connection, disable any ad blockers, or try using a different browser. Certain websites cause Firefox to continuously use 100% CPU. This will result in the Operating System having a higher CPU usage, decreasing the entire system’s performance. FIX Firefox High CPU Usage by Refreshing Firefox. At times, themes and extensions on Firefox consume a lot of system resources even though they might not be doing so visibly. Hi Firefox start to take a lot of CPU depending on how many tabs are opened (that is normal of course especially if with flash contents). Fedora in my case. However, some users have even reported that the Mozilla Firefox browser uses too much CPU even when idle or when there are only a few tabs open. Disable buggy extensions and themes. How to Effectively Decrease Firefox Memory Usage To effectively decrease Firefox memory usage, the key is to manage extensions, optimize browser settings, and employ troubleshooting techniques like refreshing or reinstalling the browser. After deinstalling gstreamer plugins and totem-mozilla plugin and disabling gstreamer setting in firefox the problem disappeared. Instantly speeds up the entire UI and reduces memory usage. In this article, we'll explore the causes of high CPU usage in Firefox, provide solutions and fixes to mitigate the issue, and offer expert insights to help you optimize Oct 2, 2025 · Factors such as tab count, extension usage, and specific web applications can greatly influence CPU usage, making real-world testing crucial for a comprehensive comparison. Besides, it will also provide reasons for the issue. Run SilverBench . Browse for a while with the extension disabled, checking your CPU usage. How Much RAM Does Firefox Use? Understanding Firefox’s Memory Consumption How much RAM does Firefox use? The answer is, unfortunately, it depends, but typically, you can expect a fresh Firefox installation to consume around 500MB of RAM on startup, but this figure can drastically increase with more tabs, extensions, and website complexity. The system’s Graphics Card driver helps in running graphics-heavy content on Firefox such as videos or games. Select Settings from the menu. May 8, 2013 · Firefox can cause excessive CPU usage if it's set to run in compatibility mode for an older version of Windows. This guide shows how to reduce Firefox memory usage. Here's how to reduce its CPU usage. Firefox has a feature that lets you see how much memory and CPU resources are being used by tabs, extensions and other processes. By implementing these strategies, users can significantly reduce the resource footprint of Firefox and improve overall system performance. One such application is Firefox. This Process Manager feature can be useful for diagnosing and solving high memory or CPU usage in Firefox. js edition online—free & fast multicore CPU benchmark and stress test in your browser with live results and detailed stats. Conclusion The question of whether Firefox uses more CPU than Chrome does not have a straightforward answer. Stop heavy downloads and close heavy websites. To determine if an extension or theme is causing Firefox to use too many resources, start Firefox in Troubleshoot Mode and observe its memory and CPU usage. By keeping the browser updated, managing add-ons, adjusting settings, and ensuring your system is free from malware, you can significantly lower Firefox’s CPU usage. However, many users have reported that Firefox consumes high CPU usage, leading to system slowdowns, battery drain, and overall poor performance. A balanced browser manages both without slowing the rest of your system. Update your system’s Graphics Card drivers. I want to combat that, I'm seeing this too, firefox randomly sustains 100% CPU usage even with only 1 tab open. Doing so will help you narrow down which browser uses the least memory while still meeting your particular requirements. This page lists extensions with known problems, plus This post introduces 11 solutions for you to fix the “Firefox high CPU on Windows 10/11”. Some of them I can just block and never visit, of course, but some others I unfortunately need to use sometimes. What is not normal is that CPU will not be released when tabs are being closed, even with one (blank) tab left opened CPU usage is 40%-85% (depending if other process need CPU). about:processes says everything is idle except only the main process, which operates at 100% or higher CPU usage. Does your system feel slow when surfing the web with Firefox? This guide shows you several ways to prevent Firefox from using too much memory. Oct 20, 2025 · Update Firefox to the latest release. These recommended settings work well for most users, but you can adjust them for better speed, lower memory usage, or improved stability. The next method to solve the high CPU and Memory Usage problems in Firefox, is to refresh it to default state while saving your essential information. Hardware acceleration Mar 1, 2022 · How to Reduce Firefox CPU Usage? First, make sure that you have Firefox and your graphics card drivers updated to the latest version. Disable Firefox Extensions and Themes Step 1: Open Firefox and click on Open Application Menu (three parallel lines) on the top right side of the browser. Stop browser freezing and lag in long ChatGPT conversations. How to Fix Firefox High CPU Usage [Easily] Mozilla Firefox is renowned for its robust performance, privacy features, and vast array of add-ons. Here’s how: *Note – However, if the memory and the CPU usage is still high, then the problem is not due to the extensions and themes. Jan 21, 2025 · How to Fix Firefox High CPU Usage [Easily] Firefox is one of the most popular web browsers available, praised for its speed, privacy features, and extensibility through add-ons. High CPU usage in Firefox can often be resolved through a combination of methods tailored to your unique usage and needs. Then, try restarting the browser and your PC. You may find Firefox taking too much of your system resources and spoiling your browsing experience. In case Firefox is consuming a lot of system resources, it could be due to heavy processes or downloads in Firefox. Firefox automatically chooses performance settings based on your computer’s hardware and operating system. Update Firefox to the latest release. v4ykr9, q9xoa, so2rr, mmdw8, tmor, ocw8q, 6z9swq, sgvs9, azzr, qeeqv,