Windows 10: Firefox Profile files and folders explained

One of our readers suggested us to come up with a follow-up article on how to find the Firefox Profile, describing some of the folders/files in the Firefox Profile folder on Windows PC. Particularly, the ones required for an easy reinstall [...]

This post Firefox Profile files and folders explained is from TheWindowsClub.com.

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I need help on how to transfer Firefox cookies to another OS

Cookies are stored in the cookies.sqlite file in the Firefox profile folder.

You can use this button to go to the Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Open Containing Folder

 

FireFox

That's why I suggested this for starters, for the issue you report:

Firefox - Profile in Use

Scroll down on that page to the "Solutions" section.
The easiest way is to open the Windows Task Manager and to kill the Firefox process from there.
If that does not work, then proceed to the next steps in that tutorial: remove the "profile lock" file, etc.

Please let us know how that goes.

Thanks,
MM

 

Where do I find my cookies folder?

Cookies, History, Passwords

Firefox stores your cookies in the automatically generated file cookies.txt under your specific Profile folder; your viewing history is saved in the file history.dat; and your saved login and passwords are kept in the file signons.txt file in the same folder. You can view the contents of all of these files using a text editor like Windows Notepad, however most of the contents will not make much sense. Username and passwords in the signons.txt file for example are encrypted for security purposes. If you want to back these up, I strongly suggest backing up your entire profiles folder, rather than these individual elements, as there are several other files which are required to make a profile function correctly.

If you simply want to import cookies, history or username/passwords from Internet Explorer at any time, you can once again use the Import option under the File menu in Firefox.