How to Fix High CPU Usage with the Firefox Browser

Firefox has always been a popular browser for users on the go. But with its growing popularity, Firefox also seems to be taking up more and more processing power on your computer. How to Fix High CPU Usage with the Firefox Browser. If your CPU usage is constantly maxing out, here’s how to fix it!

What is CPU usage and how can it be measured?

CPU usage in Firefox is the percentage of time the CPU is actively using the CPU, as opposed to idle time. The higher the CPU usage, the more work the Firefox process is doing and the more battery power it’s consuming.

There are a few ways to measure CPU usage in Firefox:

-The “Firefox Activity Monitor” extension can be installed and allows you to see how much time each process is spending on the main screen (in per cent). Unfortunately, this extension does not work with all versions of Firefox, so it may not be available to you.

-Firefox’s “about perf” page provides detailed information on the number of active tabs, processes, and threads. This information can also be exported to text or CSV files for further analysis.

-Another way to measure CPU usage is by using “top” or “htop”. Both of these commands list all active processes and their dependencies on various resources. You can then use “ps -ef | grep firefox” to see which Firefox process is using the most CPU time.

If you’re experiencing high CPU usage, there are a few things that you can try:

-Disable add-ons

How Firefox uses CPU resources

– Running the browser’s core engine

– Loading web pages and their associated resources

– Keeping track of open tabs and windows

– Serving up ads and tracking your browsing behavior

– Doing analytics on site traffic and user behavior

There are a few things you can do to improve Firefox’s performance, including:

– Disable add-ons that you don’t use or need

– Change how often Firefox updates its software

– Use lower-resolution graphics settings when available

How to fix high CPU usage in Firefox

If you’re noticing that your Firefox browser is using a lot of CPU time, there are a few things you can do to try and remedy the situation.

First, make sure that you’re running the latest version of Firefox. Older versions of the browser may not be able to handle high CPU usage well.

Next, try disabling add-ons or extensions that you don’t use frequently. These programs can often hog resources from your Firefox browser, leading to high CPU usage.

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If disabling add-ons or extensions isn’t solving the problem, then you may need to adjust your Firefox settings. You can try increasing the amount of memory allocated to Firefox, or setting a lower priority for Firefox processes so that they run in the background instead of the foreground.


Firefox is a great browser, but it can sometimes be struggling to handle the demands of modern websites. If you’re finding that your CPU usage is constantly going up, there are a few things you can do to improve performance. First, make sure that your Firefox is up-to-date and has all the latest security patches installed. Next, try disabling some of Firefox’s built-in features in order to free up resources. Finally, try using a different web browser extension or setting that might help with battery life and CPU usage. Thanks for reading!

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