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How can my phone number be updated in Firefox? Do I need Mozilla Support to get this done?

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My phone number needs to be updated in Firefox. Is this something that I can do myself or do I need Firefox support for this? Whenever Firefox issues a text code, it's using the person's current phone number to provide that text code. My phone number has changed so it needs to be updated in Firefox.

My phone number needs to be updated in Firefox. Is this something that I can do myself or do I need Firefox support for this? Whenever Firefox issues a text code, it's using the person's current phone number to provide that text code. My phone number has changed so it needs to be updated in Firefox.

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Suggestions in a login drop-down menu that have a key icon in front are login suggestions that you need to remove in the Password Manager.

Suggestions in a drop-down menu without a key symbol are autocomplete saved form data.

Suggestions without a key icon are part of autocomplete saved form data that you should be able to remove by selecting this item with the cursor Down key and pressing Delete (Mac: Shift+Delete).