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How to prevent Firefox from changing the e-mail address for one recipient

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  • Last reply by FredMcD

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My Firefox address book has the correct (new) e-mail address for John. When I compose an e-mail to John, I use the new address (either from the address book or by typing it in). But when I send the e-mail, Firefox changes my email to John's old address. The sent box shows that the e-mail went to John's old address, and I receive an "undeliverable" message. (At one point, when I started to type John's address, Firefox suggested both the old and new addresses for John. I chose an option to "not show" the old address, but that action didn't fix anything.)

My Firefox address book has the correct (new) e-mail address for John. When I compose an e-mail to John, I use the new address (either from the address book or by typing it in). But when I send the e-mail, Firefox changes my email to John's old address. The sent box shows that the e-mail went to John's old address, and I receive an "undeliverable" message. (At one point, when I started to type John's address, Firefox suggested both the old and new addresses for John. I chose an option to "not show" the old address, but that action didn't fix anything.)

Chosen solution

Firefox does not do e-mail. It is a web browser.

Are you using Firefox on your e-mail provider website or using Thunderbird?

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Chosen Solution

Firefox does not do e-mail. It is a web browser.

Are you using Firefox on your e-mail provider website or using Thunderbird?