Firefox Reset Firefox – easily fix most problems
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Over time Firefox can develop problems like slowness, crashing, unwanted toolbars and more. Troubleshooting and fixing these issues can be difficult and time consuming. The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: This article doesn't apply to your version of Firefox. It requires the latest Firefox release version which can be downloaded from mozilla.org/firefox.
What does the reset feature do?
All of your Firefox settings and personal information are stored in your profile folder. The reset feature works by creating a new profile folder for you while saving your most important data.
Firefox will try to keep the following data:
- Bookmarks
- Browsing history
- Passwords
- Cookies
- Web form auto-fill information
The following items and settings will be restored or removed:
- Extensions and themes: Although they can be incredibly helpful, some extensions and themes can cause problems. If you need to reinstall important extensions, see Find and install add-ons to add features to Firefox for help.
- Open tabs, windows and tab groups: The reset process will close all open websites. Since your bookmarks and browsing history are saved you should still be able to easily return to your favorite sites. See Where can I find my bookmarks? and Awesome Bar - Find your bookmarks, history and tabs when you type in the address bar for more info. Also, since your cookies are saved, you shouldn't be logged out of any websites you were logged in to before the reset.
- Site-specific preferences, search engines, personal dictionary, download history, DOM storage, security certificate settings, security device settings, download actions, plugin MIME types, toolbar customizations and user styles are also not saved. See the Profiles - Where Firefox stores your bookmarks, passwords and other user data article for more information about these.
Note: After the reset is finished, your old Firefox profile information will be placed on your desktop in a folder named "Old Firefox Data." If the reset didn't fix your problem you can restore some of the information not saved by copying files to the new profile that was created. See Copying files between profile folders for instructions. If you don't need this folder any longer, you should delete it as it contains sensitive information.
How do I reset Firefox to its default state?
- At the top of the Firefox window, click the menu and select .
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- Click the button in the upper-right corner of the Troubleshooting Information page.
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- To continue, click in the confirmation window that opens.
- Firefox will close and be reset. When it's done, a window will list the information that was imported. Click and Firefox will open.
- At the top of the Firefox window, click the button, go over to the sub-menu
and select . -
- Click the button in the upper-right corner of the Troubleshooting Information page.
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- To continue, click in the confirmation window that opens.
- Firefox will close and be reset. When it's done, a window will list the information that was imported. Click and Firefox will open.
- On the menu bar, click the menu and select .
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- Click the button in the upper-right corner of the Troubleshooting Information page.
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- To continue, click in the confirmation sheet that slides down.
- Firefox will close and be reset. When it's done, a window will list the information that was imported. Click and Firefox will open.
- At the top of the Firefox window, click the menu and select .
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- Click the button in the upper-right corner of the Troubleshooting Information page.
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- To continue, click in the confirmation window that opens.
- Firefox will close and be reset. When it's done, a window will list the information that was imported. Click and Firefox will open.
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