Try refreshing following these directions. If that doesn't help, you can try creating a new Firefox profile.

The Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information.

Note: When you use this feature, you will lose any extensions, toolbar customizations, and some preferences. See the Refresh Firefox - reset add-ons and settings article for more information.

To Refresh Firefox:

1. Open the Troubleshooting Information page using one of these methods:
   • Click the menu button , click help and select Troubleshooting Information. A new tab containing your troubleshooting information should open.
   • If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
2. At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it.
3. Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported.
4. Click Finish and Firefox will reopen.

Did this fix the problem? Please report back to us!

Thank you.

What kind of problems did you have that you decided to use the refresh feature in Firefox? ... Do you have an "Old Firefox Data" folder on the desktop in case the Refresh feature in Firefox has been used and a new profile has been created?

• https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems

You can copy files from the "Old Firefox Data" folder on the desktop with Firefox closed to the current profile folder to recover specific data.

• bookmarks and history: places.sqlite
• bookmark backups: compressed .jsonlz4 backups in the bookmarkbackups folder
• cookies.sqlite for the cookies
• formhistory.sqlite for saved form data
• logins.json and key3.db (decryption key) for Passwords saved in the Password Manager
• cert8.db and possibly cert_override.txt for (intermediate) certificates stored in the Certificate Manager
• persdict.dat for words you added to the spelling checker dictionary
• permissions.sqlite for Permissions and possibly content-prefs.sqlite for other Site Preferences
• sessionstore.js for open tabs and pinned tabs

See also:

• https://support.mozilla.org/en-US/kb/Recovering+important+data+from+an+old+profile

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

• Help -> Troubleshooting Information -> Profile Directory:
  Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder
• http://kb.mozillazine.org/Profile_folder_-_Firefox

I refreshed because my foxfire was slow. I would like to unrefresh, but do not know how. i am 83 and not computor savey. need to talk with someone in person.

Oakbridge said

I would like to unrefresh, but do not know how.

Maybe this article will help - scroll down to the section 'How to undo a Firefox refresh'.

http://www.fixedbyvonnie.com/2016/07/how-to-undo-a-firefox-restorereset/#.WaewHylLc2w

I need to talk with someone in person.

Unfortunately this support forum doesn't provide support by phone (so sorry ..... ) Maybe a relative, a friend, a friendly neighbor  ?

Oakbridge said

need to talk with someone in person.

Sorry, that isn't a option via this forum.