fix slow Mozilla Firefox on Windows 10

How to fix slow Mozilla Firefox on Windows 10:

Firefox is one of the most popular browsers on Windows platform, but despite its massive popularity, Firefox still has certain issues on fix slow Mozilla Firefox on Windows 10. Many users are complaining that Firefox is slow on Windows 10, and this can be a major problem if you use fix Mozilla Firefox on Windows 10.

Step to fix Mozilla Firefox on Windows 10:

Solution 1 – Change your power settings to High Performance.

 Many users reported that Firefox is running slow on their PC, and this issue is most often caused by your power settings. According to users, Windows 10 sometimes changes your power plan to Power Saving once your upgrade to it, so it’s advised that you change your settings to High Performance. To do that, follow these steps:

  1. Press Windows Key + S and enter Power Options. Choose Power Options from the menu.

2. Once the Power Options window opens select High Performance.


We have to mention that switching to High-Performance mode will drain your battery faster due to increased power consumption, but Firefox should be working without any slowdowns.

Solution 2 – Switch to a different theme

This is a possible workaround, but few users reported that it works, so you might want to try it. According to users, switching to a different, less demanding theme Firefox fixes issues with slow Firefox on Windows 10. Users reported that using a theme such as High Contrast theme fixed all slowdown issues for them.

By changing the default theme to less demanding one, Firefox might not look visually appealing, but it should work faster than before. To change your Firefox theme do the following:

  1. Open Firefox and click the Menu button in the top right corner and choose Add-ons.

  1. Select Get Add-ons tab on the right and click Featured themes.
  2. Try to find a simple theme that won’t use too much of your resources and install it.

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Fix Firefox Problems Diagnosis and Troubleshooting

By following the Fix Firefox troubleshooting methods below, most problems with Firefox can be fixed. Try these steps in the sequence If some methods does not work, go to the next one if you need additional assistance with any of these, then we have a community of volunteers with whom we are standing.


  • Restart your pc
  • Clear your cookies and cache
  • Restart Firefox in Safe Mode
  • Restore Firefox
  • Refresh Firefox
  • Create a new Firefox profile
  • Other solutions
  • Troubleshoot your plugins
  • Check software for conflict with your internet security
  • Check for malware

1. Restart your pc

Sometimes problems can be solved by restarting your PC and then restarting Firefox.

fix firefox error

2. Clear cookies and cache from your PC

There are many problems when we load a web page, the cookies and cache of Firefox can be solved by clearing:

  • Click the menu button, select History and select Clear Recent History ..
  • In the time frame to clear: drop-down, select everything.
  • Click the arrow next to the details to display a list of items that can be cleaned.
  • Select both cookies and cache
  • Click clear now

fix firefox error

3. Restart Firefox in Safe Mode

In Firefox Safe Mode all extensions will disable, uses default themes, closes hardware acceleration, and uses other tools to control the default toolbar settings and controls. For start:

  • Click on the menu button, click Help and choose Restart with Disable Add-ons …. Firefox starts with Safe Mode dialogue
  • Note: While launching Firefox, you can also start Firefox in safe mode by pressing the key on the shift key.
  • In the Firefox Safe Mode dialogue, click Start in safe mode.
  • Check whether your problem is still being taken in safe mode or not.

If the problem is still in safe mode, skip to step 4

  1. If the problem is not in safe mode, to resolve issues with common Firefox issues, troubleshoot problems with extensions, themes and hardware acceleration and follow the instructions problem is not in safe mode to reduce the problem.

fix firefox error

4. Restore Firefox into your system

Due to one of the Firefox program files, there may be some Firefox issues that follow these steps to completely remove and restore Firefox. This process will not delete your Firefox profile data (such as bookmarks and passwords) because this information is stored in a different location.

Note: You want to print these steps or you can see them in another browser.

  • Download the latest official version of Firefox
  • Exit Firefox: Click the menu button, and then click Exit
  • Uninstall Firefox from your computer
  • Remove the Firefox program folder, which is located in one of these locations by default:
  • C: \ Program Files \ Mozilla Firefox
  • C: \ Program Files (x86) \ Mozilla Firefox

5. Firefox Restore – How to download and install Firefox on Windows for instructions.

fix firefox error

Now start Firefox and see if your problem is fixed. If not, continue with the next troubleshooting method.

6. Refresh Firefox

Refresh FireFox feature may restore many of your most important problems by restoring your Firefox profile to its default state while saving your essential information.

Note: While using the latest feature, your bookmarks, browsing history, open tabs, windows, passwords, cookies and web form auto-fill information will be saved, however, your extensions and themes will be deleted and your preferences will be reset.

  1. Click on the menu button and then click help.
  2. From the Help menu choose Troubleshooting Information.

If you’re unable to access the Help menu, type about: support in your address bar to bring up the Troubleshooting Information page.

3. Click on the Refresh Firefox button in the top-right corner of the Troubleshooting Information page

fix firefox error

  1. To continue, click on Refresh Firefox in the confirmation window that opens.
  2. When the firefox automatically closes to refresh, a window will list your imported information. Click on the finish and Firefox will open

Note: If you are unable to find the latest Firefox button on your version of Firefox, then there is also a refreshing firefox button in the Safe Mode window in Firefox, if you cannot normally start Firefox, you can manually start a You can refresh by creating a new profile. See instructions for creating a new profile

7. Create a new Firefox profile

 Sometimes files in your Firefox profile folder that refresh Firefox (such as bookmark and browsing history) may be caused by a problem. You can create a new, additional profile, which will not include any data from older Firefox. See Profile Manager Use for Creating and Deleting Firefox Profiles for Instructions

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Problem with Firefox Not Responding

Problem with Firefox not responding

Firefox webpage is not running Problems with Firefox are not responding How do I resolve this problem?


problems with firefox not responding

An attempt to fix the final advantage of “Firefox is not responding” may be the issue, I have not set up the FF to upgrade immediately (check the up-date, but I have to install or not ), And I have set up FF 38.0.5. As such, I know that someone can give the opinion that doing this is not recommended, and this will keep me unsafe for the strike. Apart from this, since I have only seen 30 times of the film without a single “accident answering” or a performance accident. I use Norton as an enter-virus, so I’m not sure how safe I am, but I’m happy to use FF again. About the help “About Firefox” web page displays me at 38.0.5, and is the key to allow you to upgrade to the current launch, so I am assured that the return to the current launch Would be easy.

I wonder what was the problem in FF 40 and 41? I think the issues were originally started with FF39, with the failure of regular flashes, and with the introduction 40, the FF was modified for freezing. Here I have already been published about Freezing for Fix Firefox Profiles.

You can try the following: –

  • Check whether the site (eg chrome) in any other online browser
  • Check that you’ve visited ‘offline work’ or not, if so, uncheck it
  • Check if you have set up add-ons that prevent sites. Try to destroy them
    Access the add-on by typing: Add-ons in the routing bar
  • If this does not happen, see if there are online links (example: try to get Skype or whatever really does not require an online browser)
  • If other Internet Explorer performs, then check the Firefox online configuration. Modify> Options> Innovative> System> Settings
  • If you use a proxy, then your proxies may be incorrectly designed. Set it up with Chrome with proxy configuration
  • If you do not use a proxy, then maybe you have incorrectly designed it, try not to choose a proxy and see if it works
  • Try restoring your computer
    If it does not even execute, try installing the latest version of Firefox
  • problems with firefox not responding

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Mozilla Firefox Problems

How to Troubleshoot Mozilla Firefox Crashes & Mozilla Firefox Problems?

Firefox may crash due to various reasons, but you can fix most crashes and reset features with Firefox’s Safe Mode. However, these tricks will not cure every accident

Web browsers are complex pieces of software that interact with many other software – extensions and themes on your system, plug-ins, security programs, graphics drivers and more. Incompatibilities or older software can often crash

Use Safe Mode:

Firefox has a safe mode that loads Firefox without loading your add-ons.

To activate Safe Mode:

  1. Click the Firefox menu

mozilla firefox problems

2. Click on Help

mozilla firefox problems

3. Select Restart with Add-ons Disabled.

mozilla firefox problems

4. You can also enter Safe Mode by holding the Shift key while starting Firefox.

mozilla firefox problems

Try to use safe mode for Firefox when it’s crashed If the safe mode works properly, then the problem is one of your add-ons. You can leave the safe mode and add-on one-by-one -Enable one unless you recognize the add-on due to the problem.

Reset Firefox

Firefox stores your personal data in a profile folder. Problems may occur with your profile folder, but you do not have to waste time to identify and fix the exact cause. Firefox’s reset feature will create a new profile folder that migrates to your bookmarks, browser history, saved passwords, cookies, and auto-filling information.

When you reset Firefox, you will lose your extensions, themes, search engines, and site-specific preferences. Especially extensions and themes can crash, so it can help to get rid of them and start with a clean profile

To reset Firefox to its default state, open the Firefox menu, point to Help, and select Troubleshooting Information

mozilla firefox problems

If Firefox is again crashing after restoring your preferred extension, then one of your extensions is probably due to crashing to identify whether a particular extension is causing the problem, one by one Try to restore the extension.

Disable hardware acceleration

The Hardware Acceleration feature of Firefox uses your computer’s graphics card to present text and objects on a web page. This web page renders the rendering and takes some loads from your CPU. However, hardware acceleration can cause problems with some graphics drivers and graphics cards.

mozilla firefox problems

You can determine that hardware acceleration is the problem by disabling it, to do this, click on the Firefox button and select the option. Click on the advanced icon and uncheck the use of hardware acceleration on available checkboxes.

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