how to repair mozilla firefox

Troubleshoot and diagnose Firefox problems

1. Restart your computer. Sometimes problems can be fixed by simply restarting your computer and then starting Firefox...
2. Clear your cookies and cache. Click the Library button on your toolbar. ... Click History and select Clear Recent...
3. Restart Firefox in Safe Mode. Firefox Safe Mode is a troubleshooting mode that...

Full Answer

How do I restore my Mozilla Firefox?

How Do I Restore Firefox Settings? Firefox should now be open. Go to the hamburger menu in the top right corner of the Firefox window… Go to the bottom of the screen and click Help. Troubleshooting information can be found in the Help menu. You can refresh Firefox by clicking the Refresh Firefox button on the Troubleshooting Information page.

How to clean up and reset Mozilla Firefox?

You can set Firefox to automatically clear the cache when Firefox closes:

• In the Menu bar at the top of the screen, click Firefox and select Preferences. ...
• Select the Privacy & Security panel and go to the History section.
• In the drop-down menu next to Firefox will, choose Use custom settings for history.
• Select the check box for Clear history when Firefox closes .

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How do you fix Mozilla Firefox?

Fix PC issues and remove viruses now in 3 easy steps: Restoro has been downloaded by 0 readers this month. Mozilla Firefox is an open-source browser that is praised for its speed and security. The browser offers enhanced tracking protection and thus blocks ...

How do you troubleshoot Mozilla Firefox?

To start Firefox in Troubleshoot Mode:

• Click the menu button , click Help, select Troubleshoot Mode… and click Restart in the Restart Firefox in Troubleshoot Mode? dialog. ...
• In the next Open Firefox in Troubleshoot Mode? dialog, click Open .
• Check whether your problem is still happening while in Troubleshoot Mode.

Why is my Mozilla Firefox not responding?

Firefox may hang if left open for long periods of time. To fix the issue, restart Firefox. If you regularly leave Firefox open so that you return to where you left off, you may want to use Firefox's Session Restore feature. For more information, see Configuring session restore.

How do I get Firefox back to normal?

Click the menu button. , click Help and select Troubleshooting InformationMore Troubleshooting Information.Click Refresh Firefox… then Refresh Firefox in the confirmation window that opens. Firefox will close to refresh itself.When finished, a window will list your imported information. Click the Finish button.

Is Firefox having a problem right now?

Mozilla.org is UP and reachable by us.

How do I fix Firefox always crashing?

Table of ContentsUpdate your software. Update Firefox. Update Windows. ... Check for viruses or spyware.Check for third-party modules.Check to see if the crash happens in Troubleshoot Mode. The crash still happens in Troubleshoot Mode. ... Check your hardware. Check your RAM for errors.Get help fixing this crash.

How do I reinstall Firefox without losing data?

To keep your personal data intact, leave the box next to “Remove My Firefox Personal Data and Customization” unchecked when removing Firefox. Your bookmarks should automatically show up after reinstalling Firefox.

How do I uninstall and reinstall Firefox?

Right-click Firefox browser icon on your computer and select Open file location.Find and click Uninstall folder.Double-click the helper application to open Mozilla Firefox Uninstall window. Follow the on-screen instructions to uninstall Firefox from your Windows 10 computer.

How do I fix browser problems?

First: Try these common Chrome crash fixesClose other tabs, extensions, and apps. ... Restart Chrome. ... Restart your computer. ... Check for malware. ... Open the page in another browser. ... Fix network issues and report website problems. ... Fix problem apps (Windows computers only) ... Check to see if Chrome is already open.More items...

Why my Firefox is not opening websites?

Similarly, the Mozilla Firefox not loading pages is one of the browser issues that can easily be fixed. Most the loading issue is generally caused due to browser cache, intermittent network connectivity, and conflicting add-ons or extensions. Even restarting the browser fix the issue most of the time.

Why is Firefox not working after update?

If Firefox isn't loading pages after update, it's possible that certain settings are interfering with it. Make sure that the browser isn't blocked by the firewall or antivirus software on your PC. Corrupted cache is a common cause for problems, so be sure to remove it if you're having issues.

Why is my Mozilla Firefox crashing?

When you click Restart Firefox, this web browser crashes at once on startup. Generally, Firefox keeps crashing in Windows 7, 8, 8.1 and 10. Why does Firefox keep crashing? The reasons for this crash problem contain mismatched cache, incorrect installation, a broken add-on, outdated software, etc.

Why is Firefox freezing up?

In conclusion, Firefox freezes because of its outdated version, terrible Add-ons, and corrupted files, etc.

How do I update Firefox?

Update FirefoxClick the menu button. at the right side of the Firefox toolbar, go to Help, and select About Firefox. ... Firefox will check for updates automatically. If an update is available, it will be downloaded.When the download is complete, click Restart to update Firefox.

How do I undo the last Firefox update?

There is no "undo" for Firefox updates, you would need to download the previous version you were using, uninstall the current version, and then re-install the previous version that you had.

How do I change Firefox version?

0:031:21How Can I Change My Version of Firefox? : Firefox Tips & MoreYouTubeStart of suggested clipEnd of suggested clipHi I'm Skylar let's go over changing your version of Firefox. There are two different ways you couldMoreHi I'm Skylar let's go over changing your version of Firefox. There are two different ways you could go up or down so here I am in Firefox I'm just going to search for update Firefox. Right here at

What is the current version of Firefox?

102.0.1What's the latest version of Firefox?Release EditionPlatformVersionFirefox Standard ReleaseDesktop102.0.1Firefox Extended Support ReleaseDesktop102.0.1Firefox iOSMobile102.1Firefox AndroidMobile102.0

What version of Firefox do I have?

On the menu bar, click the Firefox menu and select About Firefox. The About Firefox window will appear. The version number is listed underneath the Firefox name.

What does refresh do in Firefox?

A Refresh can fix many issues by restoring Firefox to its default state while saving essential information like bookmarks and passwords.

Does streaming video play on Firefox?

Some videos from streaming services don't play in Firefox and Firefox ESR. This is fixed in Firefox version 88.0.1 and Firefox ESR 78.10.1

Can I use my screen reader with the new Firefox?

Users on slower computers have reported problems viewing certain web pages with some screen readers in Firefox 57 and above. Learn more.

How to troubleshoot security error codes on secure websites

Learn about the error codes SEC_ERROR_UNKNOWN_ISSUER MOZILLA_PKIX_ERROR_MITM_DETECTED and ERROR_SELF_SIGNED_CERT on HTTPS websites and how to troubleshoot.

Troubleshoot Firefox issues caused by malware

Malware is software designed to invade a computer without your knowledge. We'll explain common symptoms, how to prevent it being installed and how to remove it.

Diagnose Firefox issues using Troubleshoot Mode

Use Firefox "Troubleshoot Mode" (known as "Safe Mode" in previous versions of Firefox) to diagnose and fix problems. Learn more.

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

Learn how to find out if an extension, theme or hardware acceleration is causing a Firefox problem and what steps you can take to fix it.

Troubleshoot and diagnose Firefox problems

This article includes a series of steps you can follow, that will help you fix most problems with Firefox.

Reset Firefox preferences to troubleshoot and fix problems

When troubleshooting Firefox problems, resetting user preferences can be helpful in pinpointing the issue. This article explains how to do it.

Can't open websites after upgrading Firefox?

If you just upgraded Firefox and it can no longer open any websites but other browsers or programs can, see the Fix problems connecting to websites after updating Firefox article. If no programs can open websites, see the aptly named Firefox and other browsers can't load websites article.

What is refresh Firefox?

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

How to refresh Firefox?

To refresh, visit the address "about:support" in Firefox and press "Refresh Firefox.". If the browser won't open at all, hold "Shift" while launching Firefox, but instead of selecting to start in Safe Mode, press "Refresh Firefox" instead. Advertisement.

What is a plugin in Firefox?

Plugins, not to be confused with extensions, refer to other programs that run inside Firefox, such as Adobe Flash and Java. Visit Mozilla's plugin status page to see if any of your plugins need updating. If so, update them to potentially solve the problem.

Why does Firefox refresh?

There is a built-in Refresh Firefox feature present Mozilla Firefox browser to help users to fix Firefox issues without losing data. The Refresh Firefox restores Firefox to its default state without deleting your important data such as open tabs, history, passwords, and bookmarks.

Does refresh remove extensions?

However, the Refresh Firefox feature removes all installed extensions and extension data.

What to do if Firefox doesn't open?

After this, you should try opening the browser again. When Firefox still doesn’t open, then you can try the following solutions:

Why won't Firefox open?

Certain software used for Internet security can hinder Firefox from opening. It typically happens after Firefox is updated. This is true, especially when the tool has a feature called Virtual Browsing. Usually, this is present in some ZoneAlarm versions. The feature is also available in other types of Internet security tools.

How to execute Firefox as admin?

Here are the steps on how to do it: Step 01 - Locate the executable file, Firefox. Ece, within the application folder of Firefox on your computer. Step 02 - Right-click the icon for Firefox (the executable file).

Why won't my Firefox bookmarks be deleted?

It is important to note that your bookmarks, passwords, and user settings (and data) won’t be deleted because they are in another separate folder for profiles. Here are the steps on how to fix this problem:

How to close all processes in Firefox?

Here are the steps on how to do it: Step 01 - Press “Ctrl” + “Shift” + “Escape.”. The Windows Task Manager will be opened. Step 02 - Select the tab for Processes.

Is Firefox launched with administrator account?

It is important to note that Firefox was launched in this method with the administrator account. However, the user account utilized to log into Windows during the startup phase will still be the active user of the PC.

How to restart Firefox in troubleshoot mode?

Click the menu button , click Help, select Troubleshoot Mode… and click Restart in the Restart Firefox in Troubleshoot Mode? dialog.

What causes Firefox to crash?

Third-party applications (such as antivirus software, archiving software, and other tools) may load modules into Firefox. Sometimes, these applications load harmful modules that cause Firefox crashes, reduced performance, or compatibility issues. You may not notice that a malicious or unexpected module has been loaded and it may cause problems that appear to be Firefox issues. For more information, see Identify problems caused by third-party modules in Firefox for Windows .

What is refresh Firefox?

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

How to open a library in Firefox?

Click the Finder icon in the dock. On the menu bar, click the Go menu, hold down the option or alt key and select Library. A window will open containing your Library folder. Then open the "Application Support" folder, the "Firefox" folder, the "Crash Reports" folder and finally the "submitted" folder.

How to start Firefox in safe mode?

Note: You can also start Firefox in Safe Mode by holding down the shift key while starting Firefox. holding down the option key while starting Firefox. quitting Firefox and then going to your Terminal and running: firefox -safe-mode.

What to do if printer crashes?

If your crash happens while printing, check that your printer driver is up-to-date by going to your printer manufacturer's support website. The Fix printing problems in Firefox article may also help.

How to restart with add-ons disabled?

Click the menu button , click Help, select Restart With Add-ons Disabled… and click Restart in the Restart With Add-ons Disabled dialog.