The saved info for forms feature in firefox has been driving me a bit nutty. I love it but I also occasionally need to design forms and have filled my forms with transient dummy data, which firefox then remembers. This is mixed with form-fill data which I do want to keep, so I don't want to delete the entire form fill cache.
Easy solution. Use your keyboard to highlight the unwanted entry and hit Shift-DEL keys. Away it goes :)
Oh my God thank you! Hahaha, I hated deleting ALL my form info but I was getting annoyed with the random entries. Thank you XD.
Nice tip Freecia, very useful, 1/3 of my google entry is permutation junk