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Firefox will not "auto fill" email addresses in Yahoo mail. How do I get this to work?

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This used to work. I have a new laptop and am not sure if this is a laptop issue, a Yahoo issue, or a Firefox issue. It is very annoying to have to go to my address book every time I want to send an email because names are not recognized. This was not a problem on my previous lap top. I also think that this was not a problem with the previous version of Firefox.

This used to work. I have a new laptop and am not sure if this is a laptop issue, a Yahoo issue, or a Firefox issue. It is very annoying to have to go to my address book every time I want to send an email because names are not recognized. This was not a problem on my previous lap top. I also think that this was not a problem with the previous version of Firefox.

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Odd that grant_cm reported this a year ago, and it only started happening to me in the last week or so. What's more, email autofill with Yahoo still works for me in Safari on my Mac. I prefer the Firefox browser, but this issue is a real pain, and what's more your CAN'T insert a list from you address book. Sure would like to know what happened and how to fix this.