Firefox is Freezing on Windows 11? Here's What You Can do

Keep your browser up to date to avoid crashes & freezes

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Key notes

  • Ou readers complained that Firefox is freezing on Windows 11 and that may be caused by lack of memory.
  • Apparently, the browser is manifesting that state when attempting to download files or simply switching between tabs.
  • There is still no clear reason that might trigger such behavior, but we have a few solutions that might help you solve it.

We are aware that certain apps don’t function properly or at all on Windows 11, but some of the situations users encounter really have no apparent root cause. Such is the Firefox freezing in Windows 11 issue.

As reported by our readers, Mozilla’s Firefox browser displays some pretty erratic behavior when you run it on Microsoft’s new system.

After reading this post, one might think that this happens because there are too many addons installed on the browser.

However, there are other Firefox users that utilize this browser on Windows 11 and have a similar number of extensions activated within it but experience no such issues.

Why does my Firefox browser keep on freezing?

We encountered the same problems in Windows 10 and there are plenty of potential reasons for Firefox to freeze or become unresponsive.

In fact, we strongly recommend checking our article on what to do if Firefox is not responding on Windows 10 and 11. A lot of the solutions there can be applied to this problem also.

But let’s start with an issue that may affect all the software and mostly Firefox:

Lack of memory

In the rush of the moment, you keep opening new and new tabs but sometimes you can forget that all of them use memory from your system.

At some point, the browser becomes slower and unresponsive because simply there isn’t more memory to allocate to so many tasks.

So, before getting to the tweaking part, try to close some of the tabs you don’t need and see if Firefox stops freezing.

We also recommend reading more about what to do if Firefox is slowing down because it may be the root of the problem.

Quick Tip:

Using Opera One as an alternative may not fix your issue, but it’s a lightweight and more organized browser. By switching to Opera One you can even import your bookmarks, saved passwords, and other important data from Firefox.

Additionally, it’s well-known for using less RAM, thus you may have this quick workaround until the issue with Firefox is fixed by following the steps below.

Opera One

Freezes and crashes are not uncommon for a browser, but it handles them faster and proactively.

What can I do if Firefox is freezing on Windows 11?

1. Create a new profile

  1. If Firefox keeps freezing in Windows 11, open Firefox and type about:profiles in the search bar. This will open the Profile Manager.about-profiles firefox freezing windows 11
  2. Click Create a New Profile to start the Wizard.create-new-profile firefox freezing windows 11
  3. Select a name for your profile and click on Finish.name-finish firefox freezing windows 11

You should only use the Choose folder option when you wish to choose where to store the profile on your computer.

If Firefox is crashing in Windows 11, it can be due to an Internet security software that interferes with the browser, and prevents it from opening webpages.

Note icon NOTE
If you choose your own folder location for the profile, select a new or empty folder. If you select a folder that isn’t empty and you later remove the profile and choose the Delete Files option, everything inside that folder will be deleted.

2. Disable the Hardware Acceleration from Firefox

  1. Click on the Menu icon from the top-right corner in Firefox and select Settings.firefox-settings firefox freezing windows 11
  2. Pick the General tab from the left pane and scroll down on the right until you reach the Performance section.performance-firefox firefox freezing windows 11
  3. Uncheck the Use recommended performance settings checkbox, then do the same for the Use hardware acceleration when available feature.uncheck-performance firefox freezing windows 11
  4. Close Firefox, then open it again to see if Firefox is still freezing.

The hardware acceleration feature is usually a great thing because it’s using your graphics card to take some of the load from the system memory.

However, depending on its settings, this can only do more harm than good. Check any changes in the browser behavior and if things are not better, undo the process.

3. Create a new database for Firefox

  1. Click on the Firefox Menu icon from the top-right and select the Help option.menu-help firefox freezing windows 11
  2. Choose More troubleshooting information.more-troubleshooting-firefox firefox freezing windows 11
  3. Click on Open Folder from Application Basics.open-folder-firefox firefox freezing windows 11
  4. Close Firefox and go to the Firefox folder that opened, then find and rename the file places.sqlite to places.sqlite.old and places.sqlite-journal to places.sqlite-journal.old.firefox-folder firefox freezing windows 11
  5. Start Firefox and see if it works normally now.

4. Remove the Session Restore files

  1. Click on the browser Menu icon and select the Help option.menu-help firefox freezing windows 11
  2. Pick More troubleshooting information from the list.more-troubleshooting-firefox firefox freezing windows 11
  3. Click on Open Folder from the Application Basics section.open-folder-firefox firefox freezing windows 11
  4. Close the browser then and go to the opened folder to delete the sessionstore.js file and any associated files like sessionstore-1.js and so on. If you don’t have the Restore Session option activated in Firefox, you won’t find any such files.
  5. Start the browser again to see if the solution fixed the problem.

5. Reset the browser

  1. From Firefox, click on the Menu icon, then select Help.menu-help firefox freezing windows 11
  2. Choose More troubleshooting information.more-troubleshooting-firefox firefox freezing windows 11
  3. Find and select the Refresh Firefox option.refresh-firefox firefox freezing windows 11
  4. Continue the reset process and after it ends, open the web browser again.

This concludes our list of solutions on how to fix Firefox issues in Windows 11 and we hope that by applying them, your browser works fine again.

For more related solutions, check out our post on how to fix Firefox not loading pages in Windows 11 after an update.

How do I make my browser faster in Windows 11?

Programs known as extensions and plugins are able to add individualized functionality to your web browser. These add-ons provide for a more customized experience when surfing, but, using too many of them will slow down your browser.

It’s possible that you may increase the performance of your web browser by removing add-ons and plugins that you don’t use.

Your Firefox browser may become unresponsive if you have too many tabs open at once. Simply shutting the browser tabs that you don’t need at the present is one simple way to make your browser run more quickly. You may always save them to your bookmarks for later use.

On the other hand, there’s a possibility that the slow performance of your browser has nothing to do with the browser itself. Instead, it’s possible that your Internet signal is poor, which is causing your browser’s performance to be less than ideal.

Lastly, removing and then reinstalling your browser should fix the slow Firefox in Windows 11 issue you’re having.

By reinstalling, you can be certain that you are using the most recent version of your browser, which is essential for removing bugs and protecting against risks to your computer’s safety. In addition to this, a totally clean cache will be provided for you.

However, if Firefox is not working in Windows 11 at all, we have an even more comprehensive guide on troubleshooting Firefox issues on Windows 10 & 11 that you might want to consult.

Did you manage to resolve the Firefox freezing issue by using our solutions? Let us know in the comments section below.

More about the topics: Firefox errors, Windows 11