Yes, there are some humans here!

The Refresh feature creates a folder on your desktop named Old Firefox Data, and inside will be your entire old settings folder -- which will have a semi-random name. If you drill down into that settings folder, can you find a folder named bookmarkbackups? And if you look inside that, are there any files?

If yes, great. Go back to the Library dialog, Restore menu, and use Choose File to get to those backups.

If not, it's a little more complicated.

And your old profile folder will have the files with your saved passwords that you could copy into your new profile folder. However, I'll save the steps for that for a later reply until you confirm that bookmarks are good again.

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

• https://support.mozilla.org/kb/Recovering+important+data+from+an+old+profile
• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

For the passwords you would need the logins.json and key3.db files.

You can use this button to go to the currently used Firefox profile folder:

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

If you have submitted crash reports then please post the IDs of one or more recent crash reports that have a "bp-" prefix:

• bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the Report ID of recent crash reports on the "Help > Troubleshooting Information" page (about:support).

• Click the "All Crash Reports" button on this page to open the about:crashes page and see all crash reports.

If necessary then you can open about: pages via the location/address bar.

See:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter
• https://support.mozilla.org/kb/Mozilla+Crash+Reporter