If you go to the about:profiles page in Firefox, do you see more than one profile listed there?

Sometimes what happens is that Firefox detects that you have installed a new version and will create a new profile for you. If you see more than one profile listed on the above page, try clicking the Launch profile in new browser button. If you see your data saved in that copy of Firefox, press the Set as default profile button to make sure that Firefox opens this profile each time.

Hope this helps.

Oh i'm not sure how to find my profiles page but when I started firefox today it told me to log into my profile and it showed me a list and the list was empty! So I made a new one and I didnt know you even had profiles in firefox. And I havent installed a new version ever and my laptop has not updated I shut it off last night and nothing updated but now still everything gone and I have new firefox. There is hacker?

Hi juliaayeaye, Firefox can have multiple profiles. To see what the program is aware of, you can type or paste the special internal address

about:profiles

in the address bar and press Enter to load it. (Please refer to Wesley's reply for next steps after that.)

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Also, occasionally, Windows starts up in an odd way that prevents Firefox from accessing its own data files. This usually clears up after a system restart so you might try doing a normal Windows shutdown and restart to see whether that helps.

Hi juliaayeaye, Firefox can have multiple profiles. To see what the program is aware of, you can type or paste the special internal address about:profiles in the address bar and press Enter to load it. (Please refer to Wesley's reply for next steps after that.) - - - - Also, occasionally, Windows starts up in an odd way that prevents Firefox from accessing its own data files. This usually clears up after a system restart so you might try doing a normal Windows shutdown and restart to see whether that helps.

There was no other profiles and i've restarted laptop now and nothing changed. :/ I don't know how it happen. The only thing I did before this happen was I uninstall chromium which always infect my computer and bring me Bing searchbar I dont know if that affected firefox somehow.

Hi, please refer to this article Recover user data missing after Firefox update, to make sure you are using your original Profile. You can follow the instructions to test if any other Profile you see is the original one.

If that doesn't help, and in case a Refresh has occurred, please look on your Desktop for a file named Old Firefox Data - Refresh Firefox - reset add-ons and settings (Do not click the Refresh button in the article). If it's there, you can copy and paste the files into any Profile that you have, and any existing files will be overwritten by the new ones.

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

• Recovering important data from an old profile