Unauthorized FireShot Clone on AMO — Request for Assistance

Hello,

I am the developer of the original FireShot extension:

Another extension, FireShot, is currently listed on AMO:

I have submitted three reports regarding this extension, but all were rejected with the following response:

“Based on the information provided, we were not able to identify content that does not adhere to Mozilla’s policies…”

I would appreciate guidance on how this situation should be handled.

I performed a direct comparison of the two extension packages and found:

  • 141 of 180 files are byte-for-byte identical.

  • The remaining proprietary JavaScript has approximately 93.4% normalized code similarity, with many files exceeding 95–99%.

  • The clone reproduces our proprietary assets, UI, localization files, and internal application architecture.

  • Our original copyright notices have been removed from the copied JavaScript files.

  • Our license permits use of FireShot with Mozilla applications/services only; all other rights are reserved.

As I understand it, this raises issues under Mozilla’s Add-on Ownership / Code Disputes policy, the Firefox Add-on Distribution Agreement §5(c) concerning intellectual-property rights, and Add-on Policy §2(4) concerning forks.

I am not asking the forum to determine copyright infringement. I would simply like to understand:

What evidence or procedure does Mozilla require from the original copyright holder to have an apparent unauthorized source-code clone investigated?

If these matters are handled through a different channel or require a specific type of evidence, please point me in the right direction.

Thank you.