# Duplicate add-on ID found error

**URL:** <https://discourse.mozilla.org/t/duplicate-add-on-id-found-error/7197>\
**Category:** Add-on Support\
**Created:** [February 18, 2016, 5:40pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-error/7197 "2016-02-18T17:40:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Frank](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/frank/32/21578_2.png) [@Frank](https://discourse.mozilla.org/u/Frank)\
**Post date:** [February 18, 2016, 5:40pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-error/7197/1 "2016-02-18T17:40:24Z")

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When I attempt to upload my extension I get an error duplicate add-on ID found. This extension is not listed in the Firefox store. I suspect that this is an error when I attempted to sign and at failed. Is it possible to get support to determine if I do actually need to create a new id. I would prefer to use the existing one.  
{65e777c7-c454-42cf-b567-860c76f29cc2}  
Thanks

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**Author:** ![jorgev](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@jorgev](https://discourse.mozilla.org/u/jorgev)\
**Post date:** [February 23, 2016, 4:41pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-error/7197/2 "2016-02-23T16:41:37Z")

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I see an add-on with that ID on the site, but I’m not sure if you’re the uploader. Please email amo-admins AT mozilla DOT org with the add-on ID and name so we can figure it out.