Firefox Community Forum

The last 2 days when I have shut down my computer then restarted, my Firefox profile has disappeared, along with all my bookmarks, passwords etc. I spent several hours yesterday following all the advice here to get everything back, but nothing worked. I had to create a new profile and then import an old passwords file, which I luckily had saved in Excel. This morning when I switched the computer on, the same thing has happened. I cannot even open Firefox without creating a new profile. I get a pop up box (screenshot attached), which shows no profiles, and i have to create a new one to even open Firefox. Every time I close out of Firefox and want to go back in, I am asked to choose a profile. This has never happened before.Before i give up forever on Firefox and go over to another browser, do you have any ideas how i can stop this from happening, and get my original profile, passwords, bookmarks etc back? Thanks.

It has been two times now where I will open firefox and suddenly all my profiles are gone. I have tried everything to try to get them back like trying to get "old firefox data" back or about:profiles, but there is literally nothing to recover. All of my bookmarks and passwords are fine but I have to log in to everything all over again and reset my home page with all my shortcuts. it is extremely annoying, especially when I use up all the shortcut spaces. It prompts me when I start firefox to create a profile, sign in again, and set firefox as my preferred browser. I have been using firefox for about a year and havent had this problem until a couple of weeks ago. What can i do to avoid having to do this again in the future?