How To Fix Firefox Not Responding [Top Methods]

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Firefox not resresponding
Firefox

How to fix Firefox not responding problem – If your Firefox got hanged and you want solution To Fix Firefox Not Responding then we have provided many methods to Fix Firefox Not Responding. Many times Firefox is already running but is not responding error message will pop up while you try to run Firefox and To Fix Firefox Not Responding you can follow below guide of how to Fix Firefox Not Responding.

When Firefox hangs, it stops responding to your clicks and keystrokes and doesn’t seem to be doing anything. Also, a “(Not Responding)” label is displayed in the title bar and the mouse cursor becomes a spinning wheel hourglass when it’s over the Firefox window.Also, the mouse becomes a spinning wait cursor when it’s over the Firefox window. This article gives you solutions to Firefox hangs depending on when they happen.

Fix Firefox Not Responding Error

Firefox is a powerful, new engine that’s built for rapidfire performance and better faster page loading and also uses less memory.Firefox is developed by Mozilla Foundation. If you search top 10 web browser in Google you find Firefox in number 2,Based on it the 2nd best interest browser is Firefox.

You might be using Firefox wrong. Maybe you have a lot of tabs open which are using Flash, Java, etc. Press Ctrl+Shift+Esc to open Task Manager and look at the memory usage of Firefox under Processes. It should generally be 500~700 MB at most, even with 15 or so tabs opened, because Firefox sends inactive pages to the page file (Virtual Memory) of Windows. There should not be more than 20 tabs opened at any one time, especially if you have 4 GB or less of RAM.

Previously we have already posted how to Fix Windows Modules Installer Worker High CPU Usage Issue and How to Fix Steam disk write error and How to Fix Ethernet doesn’t have a valid IP Configuration error as well as How to Fix Nvidia Control Panel Missing Problem. Don’t worry we give all problem solution in this article, follow this bellow solution to solve your problem

This post on How To Fix Firefox Not Responding also contains below Topic

  • How do I fix unresponsive script?
  • How do I reset Firefox?
  • How do I fix not responding?
  • Why does Firefox crash all the time?

Firefox is already running but is not responding” error message

Sometimes when you close Firefox, it may stop responding and remain in memory, even though no Firefox windows are open. This can prevent Firefox from working properly the next time you open it or you may see a “Close Firefox” dialog box with an error message, Firefox is already running, but is not responding.

If you try to open it while it’s running, an error message will appear with the option to click Close Firefox. If that doesn’t solve the problem, restart your computer or try the following options to fix Firefox is already running but is not responding” error message

1. Fix Using Task Manager

  • Right-click on an empty spot in the Windows task bar and select Task Manager (or press Ctrl+Shift+Esc).
  • When the Windows Task Manager opens, select the Processes tab.
  • Select the entry for firefox.exe (press F on the keyboard to find it) and click End Process.
  • Click Yes in the “Task Manager Warning” dialog that appears.
  • Repeat the above steps to end any additional firefox.exe process, if more than one entry is found, then exit the Windows Task Manager.
  • Start Firefox normally.

If above solution to fix Firefox is already running but is not responding not worked then try below method to fix Firefox is already running but is not responding” error message.


2. Check access rights

Firefox must also have the right to create files in the profile folder. The error can occur if you try to use a profile from a file system mounted with read-only permission (e.g. a remote Windows share which doesn’t have “Allow network users to change my files” checked).

To check if the profile folder has the proper permissions:

  • Go to your Firefox profile folder
  • Go up one folder.
  • Right-click on your profile folder and select Properties.
  • Click on the General tab.
  • Make sure Read-only is not checked marked.

Hope you are now able to fix Firefox is already running but is not responding” error message. Below are Some More Methods to Fix Firefox Not Responding.

How to Fix Firefox Not Responding Error

If Firefox seems to hang randomly and not after a specific action (for example, downloading a file or quitting Firefox) follow below methods to Fix Firefox Not Responding error.

1. create a new places database

If hangs or Firefox Not Responding are periodic, it may be caused by a corrupted places database. To create a new places database, do the following:

  • 1. Open your profile folder: Click the menu button and click help, Click the menu button Fx57menu , click Help and select Troubleshooting Information. The Troubleshooting Information tab will open.
  • 2. Under the Application Basics section, click on Open Folder. A window will open that contains your profile folder. Your profile folder will open.
  • 3. In the Firefox profile folder, find and rename the files places.sqlite to places.sqlite.old and places.sqlite-journal to places.sqlite-journal.old (if it exists).
  • To rename a file, right-click on it and select rename from the menu click on it once to select it and then click a second time on the file name to make it editable. Then add .old to the end of its name.
  • 4. Finally, reopen Firefox.
  • When Firefox reopens it will create a new places database. Your browsing history will be lost but Firefox will automatically import your bookmarks from the most recent backup file

After Following above steps you will be able To Fix Firefox Not Responding error. If not try below method to Fix Firefox Not Responding error.


2. Turn off hardware acceleration

With some graphics card and graphics driver setups, Firefox may hang when using hardware acceleration. You can try turning off hardware acceleration to see if it fixes the problem.

  • Click the menu buttonFx57Menu and choose Options..
  • Select the General panel.
  • Under Performance, clear the Use recommended performance settings checkbox.
  • Uncheck Use hardware acceleration when available.

  • Click the Firefox menu Fx57Menu , then click Exit.
  • Start Firefox the way you normally do.

If the problem is no longer happening, then hardware acceleration was likely the cause. You can try updating your graphics drivers to see if that fixes it or simply run without hardware acceleration.

After Following above steps you will be able To Fix Firefox Not Responding error. If not try below method to Fix Firefox Not Responding error.


3. Delete duplicate Session Restore files

Firefox may be slow to respond or hang if multiple copies of its Session Restore file have been created:

  • Open your profile folder:
  • Click the menu button Fx57menu , click Help and select Troubleshooting Information. The Troubleshooting Information tab will open.
  • Under the Application Basics section, click on Open Folder. Your profile folder will open.
    Note: If you are unable to open or use Firefox, follow the instructions in Finding your profile without opening Firefox.
  • Click the Firefox menu Fx57Menu , then click Exit.
  • Locate and delete the sessionstore.js file and any copies, such as sessionstore-1.js, sessionstore-2.js.

After Following above steps you will be able To Fix Firefox Not Responding error. If not try below method to Fix Firefox Not Responding error.


4. Change the PAC implementation

If you’re using a proxy auto-config file (PAC), Firefox may hang when you attempt to load sites that don’t exist or that you haven’t opened recently. To determine if you use an automatic proxy configuration file:

  • Click the menu button Fx57Menu and choose Options.
  • In the General panel, go down to the Network Proxy section.
  • Click Settings…. The Connection Settings dialog appears.
  • If Automatic proxy configuration URL is selected, you are using an automatic proxy configuration file. Do not disable this setting, which will prevent you from accessing the Internet. Instead, provide this workaround to your network administrator.
  • Click Cancel.

After Following above steps you will be able To Fix Firefox Not Responding error. If not try below method to Fix Firefox Not Responding error.


5. Clear download history

Firefox may hang when downloading files if your download history has grown too large. To clear the download history:

  • Click the Downloads button fx20 download icon and then click Show All Downloads. The Library window will open.
  • Click Clear Downloads to delete the download history.
  • Download some sample files to see if the hanging has stopped.

After Following above steps you will be able To Fix Firefox Not Responding error. If not try below method to Fix Firefox Not Responding error.


6. Choose a different download folder

Firefox may hang if the last download folder location (e.g. a shared volume or USB drive) is no longer available. To fix this:

  • Click the menu button and choose Options.
  • Select the General panel.
  • Under Downloads, select Save files to and click the Browse button.
  • In the Choose Download Folder window, choose a new folder location.
  • Close the about:preferences page. Any changes you’ve made will automatically be saved.

See if you are now able to download files or save images. If this works, you can go back to your Firefox settings, if you wish, and select Always ask me where to save my files.


 

 

 

 

Many other Firefox problem/solution/query

How to reset Firefox?

  1. Click the menu button and then click help .
  2. From the Help menu choose Troubleshooting Information. …
  3. Click the Refresh Firefox button in the upper-right corner of the Troubleshooting Information page.
  4. To continue, click Refresh Firefox in the confirmation window that opens.
  5. Firefox will close to refresh itself.

How to fix unresponsive script?

  1. Install YesScript.
  2. Close and re-load Mozilla Firefox.
  3. Click the Tools menu, select Add-Ons.
  4. Select “YesScript” and click Options.
  5. A new dialog will appear. Enter the website URL which displays you script error.
  6. Click Add button. This will fix Unresponsive Script Error in Firefox, Chrome & IE.

How to speedup Firefox?

  1. Enter about:config into Firefox’s address bar and press Enter.
  2. Search for the browser.cache.use_new_backend flag and double-click on it.
  3. Change its value from 0 to 1 to enable the new cache.
  4. Close about:config and continue browsing—no need to restart or anything.

How to add Firefox in home page?

  1. Open a tab with the web page you want to use as your home page.
  2. Drag and drop that tab onto the Home button on your toolbar.
  3. Click Yes to set this page as your home page.

So these are some methods of how to Firefox Not Responding. If you are still getting Firefox is already running but is not responding error message then comment below and we will try to resolve your query to Firefox Not Responding.

 

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