Reset Firefox Completely and Start Over from Scratch

Start Firefox, type about:support in the address bar and press ENTER. Click “Refresh Firefox”. It tells you that refreshing Firefox will remove your add-ons, customizations and restores default browser preferences. Click “Refresh Firefox”, and click Finish in the next dialog.

1. How do I completely reset Firefox?
2. How do I clean and reinstall Firefox?
3. How do I repair Mozilla Firefox?
4. Can I uninstall and reinstall Firefox without losing my bookmarks?
5. How do I clean up Firefox?
6. How do I change settings in Firefox?
7. Can I delete old Firefox data?
8. Why is my Mozilla Firefox not responding?
9. What happens if I refresh Firefox?
10. How do I fix Firefox unable to connect?
11. Why won't Firefox connect to the Internet?

How do I completely reset Firefox?

How to reset Firefox

1. Open Firefox on your Mac or PC.
2. Navigate to this Firefox support website.
3. Click the "Refresh Firefox" button. You have to employ Firefox on your computer in order to refresh the browser through its support page. Emma Witman/Business Insider.
4. Select "Refresh Firefox" again when prompted.

How do I clean and reinstall Firefox?

How do I do a clean install of firefox?

1. Download the full installer here.
2. Uninstall Firefox through Programs and Features.
3. Delete the "Mozilla" folder below. If you have SeaMonkey installed, you'll need to go one directory deeper and delete the Firefox folder. ...
4. Delete the "Mozilla" folder below. c:\Users\<username>\AppData\Local\Mozilla\
5. Install Firefox.

How do I repair Mozilla Firefox?

Table of Contents

1. Restart your computer.
2. Clear your cookies and cache.
3. Restart Firefox in Safe Mode.
4. Reinstall Firefox.
5. Refresh Firefox.
6. Create a new Firefox profile.
7. Other solutions. Check browser internals. Troubleshoot the Flash plugin. Check for conflicts with your Internet security software. Check for malware.

Can I uninstall and reinstall Firefox without losing my bookmarks?

Related. Performing a clean uninstallation of Mozilla Firefox removes your bookmarks permanently. ... If you cannot open Firefox due to corrupted program files, you can instruct the Firefox Uninstall Wizard to leave your personal data intact, thus allowing you to regain your bookmarks after reinstalling Firefox.

How do I clean up Firefox?

Clear the cache

1. In the Menu bar at the top of the screen, click Firefox and select Preferences. ...
2. Select the Privacy & Security panel.
3. In the Cookies and Site Data section, click Clear Data….
4. Remove the check mark in front of Cookies and Site Data. ...
5. With Cached Web Content check marked, click the Clear button.

How do I change settings in Firefox?

Connection settings in Firefox

1. In the Menu bar at the top of the screen, click Firefox and select Preferences. Click the menu button. and select Options. Preferences. Settings.
2. In the General panel, go to the ProxyNetwork Settings section.
3. Click Settings…. The Connection Settings dialog will open.

Can I delete old Firefox data?

The "Old Firefox Data" folder is created when the browser is refreshed. It contains the original profile you were using before the refresh. If anything seems wrong or missing, you might be able to recover what you want from it. Once you are sure you no longer have need of the old profile, you can remove it if you want.

Why is my Mozilla Firefox not responding?

A problematic extension can cause the problem, which can be resolved by disabling or uninstalling the extension. For information on diagnosing and fixing problems caused by faulty extensions, see the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article.

What happens if I refresh Firefox?

What does the refresh feature do? Firefox stores all your settings and personal information in a profile folder. The refresh feature creates a new profile folder and saves your important data. The refresh feature removes add-ons normally stored inside the Firefox profile folder (such as extensions and themes).

How do I fix Firefox unable to connect?

To check your connection settings in Firefox:

• In the Menu bar at the top of the screen, click Firefox and select Preferences. ...
• In the General panel, go down to the ProxyNetwork Settings section.
• In the ProxyNetwork Settings section, click Settings….
• Change your proxy settings: ...
• Close the Connection Settings dialog.

Why won't Firefox connect to the Internet?

Deactivate the proxy server by clicking the Firefox menu, then “Preferences,” and select the “Advanced” panel. Click the “Network” tab and then the button labeled “Settings.” Make sure “No Proxy” is selected, close the Connection Settings and Preferences windows and test the connection.