This is a screenshot

Hi, looking at your Taskbar, I don't think Windows explorer.exe is running properly. So close Firefox, click the Start button on the Taskbar and restart your computer - hopefully that will fix it and restore your passwords, but if not, please see -

• Profiles - Where Firefox stores your bookmarks, passwords and other user data.

• Recover important data from an old profile.

If your question is resolved by this or another answer, please take a minute to let us know. Thank you!

Thank you. I got the tabs back ok by restarting the laptop but I can't work out how to retrieve the passwords from the files. The data is encrypted. I may have to put them all in manually and save them again.

Hi, 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 the problem. Never work with original files.

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

Suggest for the future :

• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer

Please let us know if this solved your issue or if need further assistance.

Thank you. I decided to enter all the passwords in manually in case the files in my old profile are corrupt. Hopefully it won't happen again.