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[Windows] Firefox keeps random site data
(lemmy.ml)
A place to discuss the news and latest developments on the open-source browser Firefox
That could simply be the cookies.txt file with no content whatsoever.
Firefox stores cookies in a DB file called cookies.sqlite, i just cleared cookies on a fresh new Firefox profile and the file is 524.3kB. A text dump of the file has four lines of text that describe the structure of the cookie database and that's it. No actual content.