Update to Mozilla Firefox and Now Unable to get My Previous Tabs, Books, and it Seems my profile was Wiped
Aloha — An update to Firefox must have occurred, and I am unable to access my open tabs and bookmarks. I have had a Firefox account for 15 years at least and a lot of information was in my folders and bookmarks. Please let me know how the information can be recovered. I tried to follow several of the instructions provided and was not able to fix the issue. I have a recovery code/Mozilla key, but I am not sure where or how to use it.
I do all my work and personal stuff on Firefox so I need timely assistance to fix the problem.
Thank you, Mike
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If Firefox starts up after an update without your bookmarks and other settings, check whether your data is available in a different profile:
Inside Firefox, type or paste about:profiles in the address bar and press Enter/Return to load it. The About Profiles page will open. This page should list at least one profile and could list many.
The profile that Firefox is currently using will show:
This is the profile in use and it cannot be deleted.
Please do not delete anything here; don't use any Remove buttons.
Do you have another profile named default or default-longnumber listed on this page? If so, you can check whether it is the one you were using recently by clicking its Launch profile in new browser button.
If it isn't what you want, simply close that new window.
If it IS what you want, click the Set as default profile button for that profile on the about:profiles page. Firefox will use it automatically at the next startup.
For more information see Recover user data missing after Firefox update or reinstall.
Note: If your bookmarks are not available in another Firefox profile, see Recover lost or missing Bookmarks for other solutions.