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

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.

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?

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

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.

email id is uttpal25993@gmail.com

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.

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

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

how to do that?

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

I tried changing Id but still the same error!

I tried changing addon name and it worked.

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.

Since you deleted the add-on, you will have to change the value of browser_specific_settings.gecko.id in your extension’s manifest.json file.

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! :slight_smile:

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