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How can I retrieve my Firefox data on my computer?

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Firefox was updating itself on my computer ( not on this iPhone) and in the process all of it disappeared, bookmarks, data, etc. If I try to open it, message appears which says “Profile Missing: Your Firefox profile cannot be loaded. It may be missing or inaccessible”.

Firefox was updating itself on my computer ( not on this iPhone) and in the process all of it disappeared, bookmarks, data, etc. If I try to open it, message appears which says “Profile Missing: Your Firefox profile cannot be loaded. It may be missing or inaccessible”.

Modified by philipp

Additional System Details

Application

  • User Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 12_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Mobile/15E148 Safari/604.1

More Information

FredMcD
  • Top 10 Contributor
4254 solutions 59583 answers
What's your computer system and Firefox version? https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible http://kb.mozillazine.org/Profile_folder_-_Firefox#Navigating_to_the_profile_folder https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles ---------------- Look on your desktop. Do you see a folder called; '''Old Firefox?''' Look inside. Look for the folder with the latest creation date. https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible