Hello,

Yes, deleting a profile via the Profile Manager deletes the local database file associated with that specific profile.

You need to move that Bookmarks to your Main Profile?

1. Before doing anything in the Manage Profiles menu, manually back up your bookmarks.

• Press Ctrl + Shift + O to open the Library window.
• Click Import and Backup
• Select Export Bookmarks to HTML... and save the file

2. Moving Bookmarks to your Main Profile

• Now that you have the backup, you need to make sure they are active in your main profile.

• Switch to your Main/Wanted profile > Open the Library > Click Import and Backup > Import Bookmarks from HTML....

• Select the file you just saved to your Desktop.

3. Once you have confirmed that your bookmarks are visible and working in your Main profile, you can head back to about:profiles.

• When you click Remove on the unwanted profile, Firefox will give you two options:

• Don't Delete Files: This removes the profile from the list but leaves the folder on your hard drive. (Safest)

• Delete Files: This wipes the folder entirely.

If you choose Don't Delete Files, the bookmarks still exist in a folder on your computer, they just won't show up in Firefox anymore. Since you have 30,000 bookmarks, I recommend choosing this option first. You can always manually delete the folder later

More info Profile Manager - Create, remove or switch Firefox profiles

Thanks, George. I successfully deleted the extra profile. After computer restart, upon opening FF, I got the pop-up that appeared awhile back that previously asked which of the profiles I wanted. Now it showed both profiles again. I clicked the Delete icon for the unwanted one. After restarting FF the pop-up appeared asking me to open the correct profile or whether I wanted create a new profile. Why doesn't FF simply open my browser in the only profile without the extra step of the pop-up? I like the sync across my devices. I can always create a new profile via about:profiles. I don't need a query every time I open FF. Thanks again for your help.

You can Choose a profile at Firefox startup and unselect the box Choose a profile when Firefox opens

or

2. You can

• If Firefox is open, close Firefox: Click the Menu and select Exit.
• Press the Windows key + R on the keyboard.
• In the Run dialog box, type in: firefox.exe -P
• You can use -P, -p or -ProfileManager (any of them should work).
• Click OK. The Firefox Choose User Profile window should open.

Check the Use the selected profile without asking at startup. More info Start the Profile Manager when Firefox is closed