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form autofill data being remembered regardless if firefox is uninstalled or cache files are deleted

  • 2 replies
  • 1 has this problem
  • Last reply by Adam

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hey you guys,

I've got a rather annoying issue here with your browser. My username and password form data is being remembered by firefox no matter what I do to get it to *forget* the data! I have tried all of the following workarounds:

=> uninstalling and reinstalling firefox from scratch => clearing the cache and temp files by going to *options*, selecting "clear data - all history" and checking every option possible => completely deleting the files called "cookies.SQLITE" and "formhistory.SQLITE" from the directory "C:\Users\Owner\AppData\Roaming\Mozilla\Firefox\Profiles\myProfile"

have you guys ever heard of this happening?? I would certainly like some insight into this from you experts here! thanks.


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Login data (usernames and passwords) are stored in logins.json in the profile folder.

Did you look for this login in the Password Manager ?

  • Options/Preferences -> Privacy & Security: Logins and Passwords: "Saved Logins"

See also:

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I'm a software developer, so naturally I look at source code and files in the windows dirs. I've solved it though, and probably by the same way you're suggesting. I did not look at your link as it has already been resolved. but thank you anyway. see attached image for the page where I found out what to do. I clicked on the "head image icon" in the upper right corner of the browser.