# "Duplicate add-on ID found" while submitting add-on

**URL:** <https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806>\
**Category:** addons.mozilla.org\
**Created:** [March 29, 2016, 9:52am UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806 "2016-03-29T09:52:36Z")\
**Posts on this page:** 15\
**Page:** 1

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**Author:** ![uttpal25993](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@uttpal25993](https://discourse.mozilla.org/u/uttpal25993)\
**Post date:** [March 29, 2016, 9:52am UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/1 "2016-03-29T09:52:37Z")

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I am submitting my add on but getting “Duplicate add-on ID found” while validation.

UUID in install.rdf is : {ec8030f7-c20a-464f-9b0e-13a3a9e97384} and {aa3c5121-dab2-40e2-81ca-7ea25febc110}

please help.

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**Author:** ![TheOne](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/theone/32/49872_2.png) [@TheOne](https://discourse.mozilla.org/u/TheOne)\
**Post date:** [March 29, 2016, 2:39pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/2 "2016-03-29T14:39:51Z")

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The first one is the Firefox application ID.  
The second one looks like a proper add-on ID. Are you logged in with the correct account that owns this add-on?

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**Author:** ![uttpal25993](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@uttpal25993](https://discourse.mozilla.org/u/uttpal25993)\
**Post date:** [March 29, 2016, 2:49pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/3 "2016-03-29T14:49:30Z")

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Yes, I own this addon and currently logged in with same account.

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**Author:** ![TheOne](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/theone/32/49872_2.png) [@TheOne](https://discourse.mozilla.org/u/TheOne)\
**Post date:** [March 29, 2016, 2:56pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/4 "2016-03-29T14:56:13Z")

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Please send me a private message and state your email address of the AMO account you use. Also, please attach a screenshot of the error.

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<div class="post-metadata">

**Author:** ![uttpal25993](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@uttpal25993](https://discourse.mozilla.org/u/uttpal25993)\
**Post date:** [March 29, 2016, 5:44pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/5 "2016-03-29T17:44:10Z")

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![](https://us1.discourse-cdn.com/flex001/uploads/mozilla/original/2X/4/40ae9a8e98d77d8fcd852250357b527dbeb9883c.png)

email id is [uttpal25993@gmail.com](mailto:uttpal25993@gmail.com)

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**Author:** ![TheOne](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/theone/32/49872_2.png) [@TheOne](https://discourse.mozilla.org/u/TheOne)\
**Post date:** [March 30, 2016, 8:47am UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/6 "2016-03-30T08:47:44Z")

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It seems you are trying to submit a new add-on instead of a new version to your already existing add-on. Please go to your developer hub, select the add-on in question and click `Manage Status and Versions`. There you will find a button to upload a new version.

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**Author:** ![uttpal25993](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@uttpal25993](https://discourse.mozilla.org/u/uttpal25993)\
**Post date:** [March 30, 2016, 9:17am UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/7 "2016-03-30T09:17:59Z")

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Actually i am trying to submit a new addon, this is not new version, this  
is a totally new addon.

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**Author:** ![TheOne](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/theone/32/49872_2.png) [@TheOne](https://discourse.mozilla.org/u/TheOne)\
**Post date:** [March 30, 2016, 12:17pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/8 "2016-03-30T12:17:15Z")

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Then you need to change the ID of this add-on because it’s already being used by another one.

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**Author:** ![uttpal25993](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@uttpal25993](https://discourse.mozilla.org/u/uttpal25993)\
**Post date:** [March 30, 2016, 12:21pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/9 "2016-03-30T12:21:28Z")

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how to do that?

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<div class="post-metadata">

**Author:** ![TheOne](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/theone/32/49872_2.png) [@TheOne](https://discourse.mozilla.org/u/TheOne)\
**Post date:** [March 30, 2016, 12:30pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/10 "2016-03-30T12:30:31Z")

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You can change the ID in your `install.rdf` file.

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<div class="post-metadata">

**Author:** ![uttpal25993](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@uttpal25993](https://discourse.mozilla.org/u/uttpal25993)\
**Post date:** [March 30, 2016, 12:41pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/11 "2016-03-30T12:41:38Z")

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I tried changing Id but still the same error!

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<div class="post-metadata">

**Author:** ![uttpal25993](https://avatars.discourse-cdn.com/v4/letter/u/977dab/32.png) [@uttpal25993](https://discourse.mozilla.org/u/uttpal25993)\
**Post date:** [March 30, 2016, 3:26pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/12 "2016-03-30T15:26:11Z")

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I tried changing addon name and it worked.

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**Author:** ![playfulsparkle](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/playfulsparkle/32/71793_2.png) [@playfulsparkle](https://discourse.mozilla.org/u/playfulsparkle)\
**Post date:** [February 18, 2025, 5:13pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/13 "2025-02-18T17:13:37Z")

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I am encountering an issue related to my recent add-on submission. Initially, I uploaded a version that was not built using Webpack. After noticing the issue, I promptly deleted the partially submitted add-on and rebuilt the package to ensure it was ready for distribution. However, during the subsequent upload attempt, I received the following error: **“Your add-on failed validation with 1 error: Duplicate add-on ID found.”** Could you kindly assist me in resolving this issue so I can successfully upload the updated add-on? Thank you in advance for your assistance.

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**Author:** ![dotproto](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/dotproto/32/62957_2.png) [@dotproto](https://discourse.mozilla.org/u/dotproto)\
**Post date:** [February 18, 2025, 9:35pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/14 "2025-02-18T21:35:03Z")

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> [@playfulsparkle](#):
>
> After noticing the issue, I promptly deleted the partially submitted add-on and rebuilt the package to ensure it was ready for distribution.

Since you deleted the add-on, you will have to change the value of [`browser_specific_settings.gecko.id`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/browser_specific_settings#id) in your extension’s manifest.json file.

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<div class="post-metadata">

**Author:** ![playfulsparkle](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/playfulsparkle/32/71793_2.png) [@playfulsparkle](https://discourse.mozilla.org/u/playfulsparkle)\
**Post date:** [February 18, 2025, 9:57pm UTC](https://discourse.mozilla.org/t/duplicate-add-on-id-found-while-submitting-add-on/7806/15 "2025-02-18T21:57:44Z")

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Thanks for the heads-up, dotproto! Got it, I’ll update the `browser_specific_settings.gecko.id` section in the `manifest.json` and re-upload the add-on. Appreciate your help, thank you again! 🙂