How do I have Firefox forget my email address and password for Facebook ?
every time i open my email or facebook it remembered my old email address and i would like to know how to make it forget that
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Every time Firefox opened
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You can just delete the cookies for that site by opening Firefox and going to Tools>Options>Privacy click on where it says Firefox will and click on Use Custom settings for history then click on Show Cookies and delete the one for the website you want to erase. In this case FaceBook
Or you can delete it a different way if that doesn't work by going to Tools>Options>Security>Saved Passwords and delete the one you want to erase.
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Chosen Solution
You can just delete the cookies for that site by opening Firefox and going to Tools>Options>Privacy click on where it says Firefox will and click on Use Custom settings for history then click on Show Cookies and delete the one for the website you want to erase. In this case FaceBook
Or you can delete it a different way if that doesn't work by going to Tools>Options>Security>Saved Passwords and delete the one you want to erase.
Sounds good, but I can't seem to do this. My Firefox 3.6.10 Tools doesn't offer Options. I'm using a Mac. Is this why?
On a Mac you can look at Firefox > Preferences
See Menu differences: Windows: Tools > Options - Mac: Firefox > Preferences - Linux: Edit > Preferences
See also http://kb.mozillazine.org/Deleting_autocomplete_entries