Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Firefox desktop evidently was updated last night and now my bookmarks and history are missing.

bold textWHY did you delete my bookmarks and history including the files when you installed the latest backup??? I did not even realize you had another update until I logged in this morning and my desktop firefox screen was completely changed and all my history and bookmarks are BLANK! I've wasted my entire morning trying to fix this! Your support materials are not working either as there are no bookmarks or history left! Ugh!

'''bold text'''WHY did you delete my bookmarks and history including the files when you installed the latest backup??? I did not even realize you had another update until I logged in this morning and my desktop firefox screen was completely changed and all my history and bookmarks are BLANK! I've wasted my entire morning trying to fix this! Your support materials are not working either as there are no bookmarks or history left! Ugh!

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Hi Lynn, I'm sorry to hear about this problem. Could you check for other profiles using the steps in the following article: Recover user data missing after Firefox update.