A thoughtful young chap cleverly selected “Never save password for this site” while he was visiting his favourite swinging and dating sites, in order to spare his fianacé the stress that would ensue if she discovered his hobby. However, the guy’s fiancé inadvertanly discovered that Firefox’s Password Manager also doubles as a convenient “dodgy sites list”.

After dumping him, she kindly submitted this helpful bug report to Mozilla.

Thanks to crypto-gram for this story.