Firefox is deleting my history on exit even though the setting isn't enabled
For some reason Firefox is deleting my browsing history every time I exit the browser. I do not have the setting enabled to 'Delete cookies and site data when Firefox is closed'.
This seems to have started happening since I told Firefox to 'forget' a couple of sites in my browsing history.
I do not have any external programmes such as antivirus that would delete the browsing history.
What could be causing this?