Hello,

Many site issues can be caused by corrupt cookies or cache. In order to try to fix these problems, the first step is to clear both cookies and the cache. Note: This will temporarily log you out of all sites you're logged in to. To clear cache and cookies do the following:

1. (Firefox 57 and above) Click the Library button and choose History.
   (Click the menu button and choose History in older Firefox versions.)
2. In the History menu, choose "Clear Recent History...".
3. Under "Time range to clear", select "Everything".
4. Now, click the arrow next to Details to toggle the Details list active.
5. From the details list, check Cache and Cookies and uncheck everything else.
6. Now click the "Clear Now" button.

Further information can be found in the Delete browsing, search and download history on Firefox article.

Did this fix your problems? Please report back to us!

Thank you.

This does not correct the problem. Firefox is still not logged into my Firefox account.

Let's try a refresh then:

After the refresh, we will try to log in again:

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.

After "Refresh" I still have the same issue. Firefox will still not sync with my Firefox account.

You can open about:sync-log via the location bar to see if there are recent error logs available. You can upload a recent log if the log is too big to put in a reply.

• https://pastebin.mozilla.org/

Corel. I have something similar. Since 59 (09/03/2018) Every day synch doesn't login and i have an entry in error log. Doesn't seem to give much clue though some logs are much bigger than others.

Fwiw if i manually log in it logs in. (does this have anything to do with the top sites being blank as well (pencils next to them)

Sync.Service DEBUG Exception calling WrappedLock: Error: User needs to re-authenticate (resource://services-sync/browserid_identity.js:240:29) JS Stack trace: ensureLoggedIn@browserid_identity.js:240:29 < [email protected]:835:15 < [email protected]:181:27 < [email protected]:137:22 < [email protected]:107:22 < [email protected]:854:12 < sync/<@service.js:1084:21 < [email protected]:107:22 < [email protected]:1080:12 1521450576470 Sync.Service DEBUG Not syncing: login returned false.

In case of issues with Sync you can try this:

Disconnect from Sync and Reconnect to Sync again. You can disconnect from Sync by clicking the e-mail address in the "3-bar" Firefox menu button drop-down list or go to "Options/Preferences > Sync". Delete the signedInUser.json file in the Firefox profile folder and delete the Weave folder (Sync was formerly named Weave). Remove an existing chrome://FirefoxAccounts entry in the Firefox Password Manager. If that isn't enough then delete the prefs.js files to reset all prefs and maybe also delete the compatibility.ini file to reinitialize the profile. Delete and re-create the Firefox account or change the Sync password. Note that changing the Sync password will wipe all data stored on the Sync server.

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 found multiple signedInUser.jsons (4) and the same for weave folders in the directory - delete all? (latest did nothing)

My passwords have gone missing again! previously restored via deleting the db4 file