Add-ons/Reviewers/Content Review Guidelines

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Add-on content reviewers help ensure that extensions listed on (AMO) adhere to Mozilla’s Acceptable Use Policy.

Guidelines for Content Review

Acceptable Use

Mozilla’s Acceptable Use Policy lists criteria for unacceptable content, and these criteria also apply to AMO. Some examples of unacceptable content under this policy that might be found in extension listings include:

  • obscene or pornographic images
  • hate speech (note: anything that promotes Nazism or uses Nazi symbols must be rejected)
  • advertisements for illegal products or services

Add-on content reviews should also adhere to these additional guidelines:


Add-ons that are clearly spam should be rejected. Some indicators of spam include:

  • Large content block of SEO search terms
  • Links to websites that are unrelated to the Firefox extension

Copyright or Trademark Violations

With the exception of Mozilla trademarks, reviewers do not handle reports of copyright or trademark infringements. Determining copyright or trademark infringement is a complicated legal process that should be handled by Mozilla’s legal team.

For Mozilla trademarks, the usage of “Mozilla” and “Firefox” are generally not allowed in the add-on name, except in the following format: “ADD-ON NAME for Firefox.”

Sexual Content

Any child pornography must be escalated to Mozilla for reporting to the National Center for Missing and Exploited Children (NCMEC). Please send an email to and include the following:

  • Review URL
  • Short description of the image

Review Process

1. Log in to and access the reviewer tools.

2. Click on an add-on in the queue to start reviewing its content.

3. Check to make sure the extension listing clearly describes what the extension does, and would be understandable to users who do not have domain knowledge of the service the add-on is working with. The following fields must be filled out:

  • Title
  • Summary
  • Description (only if the summary doesn’t say it all)

4. Check the following information to make sure it adheres to the Acceptable Use Policy:

  • Title
  • Icon
  • Description
  • Screenshot content
  • Author name

Review Actions

1. On the review page, use the box towards the end of the page to submit the review:

  • If an extension looks unobjectionable (i.e., not spam) and does not have a description, use the reviewer tool to request information:
    • Click Reviewer reply.
    • Mark the checkbox “Is more info requested?”
    • In the list next to “Insert canned response, select “Incomplete Description”
    • Click “Save” to submit the review.

2. If the extension does not adhere to the policy, click “Reject.” Select all versions and enter the rejection message in the box.

  • Clearly describe which information in the listing violates our policy.
  • Rejecting an extension will send a message to the developer and remove the extension’s listing on (AMO).

3. If you see that an author’s name violates the Acceptable Use Policy, please escalate to an admin (see below).

4. If the extension complies with the policy, click “Approve.” and then “Save” to submit the review. You can move on to the next extension.


If you are not sure about whether something is acceptable or not, escalate it to a staff reviewer. Don’t reject immediately.

You can contact staff reviewers by clicking ‘Request Super Review’ in the review tools. In the text area, describe the issue.