Firefox is slow - How to make it faster

What good is that super fast Internet connection when your browser is running at dial-up speed? This article will point you in the right direction to track down and fix the problem. Of course, if you need extra help with any of this, we have a community of volunteers standing by.

Note: The Refresh Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Consider using it before going through a lengthy troubleshooting process.

Update Firefox

We're constantly improving Firefox. The latest version is faster than ever before and contains fixes for many problems that could slow down your Firefox. See Update Firefox to the latest version to learn how to update.

High hardware resource usage

If a monitoring tool shows you high hardware resource usage, try the suggestions in the Firefox uses too much memory (RAM) - How to fix and Firefox uses too many CPU resources - How to fix articles.

Firefox hangs or stops responding

If Firefox freezes and gives you the hourglassgives you the spinning wheel and turns whitegives you the spinning beach ballturns gray, try the Firefox hangs or is not responding - How to fix article.

I get a Warning Unresponsive script error

“Unresponsive script error”? What does that even mean? We've got an article about that called, believe it or not, Warning Unresponsive script - What it means and how to fix it that will help clear things up.

Firefox takes a long time to start up

Try the suggestions in the Firefox takes a long time to start up article.

Check if you have malware on your computer

To resolve slowness problems not specifically mentioned above, you should scan your computer for viruses, spyware, and other malware and read Troubleshoot Firefox issues caused by malware.

Optimize Windows

Speed up Windows and make your computer work better. See Maintenance tasks that improve performance at Optimize Windows 7 for better performance at Performance & maintenance - Windows Help at Optimize Performance of Windows 10 at

Block unneeded content

There are many Firefox add-ons that can make pages load faster by blocking content you don't need, such as trackers or ads.

  • The Disconnect add-on blocks invisible webpage parts that track you online.
  • The Flashblock add-on allows you to selectively enable and disable Flash content on websites.
  • The NoScript add-on allows you to selectively enable and disable all scripts running on websites.

This didn't solve my problem. What do I do now?

Sometimes tracking down the source of these kinds of problems is difficult. We have a community of volunteers ready to help you figure it out.

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These fine people helped write this article: AliceWyman, Tonnes, user66338, Verdi, scoobidiver, Swarnava, ouesten, upwinxp. You can help too - find out how.