Content script not executed on addons.mozilla.org

I’m porting Formlet (https://github.com/jusuff/Formlet/tree/webextension/) extension to webextensions API and I found that my content script is not executed on https://addons.mozilla.org/pl/firefox/

In fact if looks that no content scripts are executed on this site (checked other extensions).

What is the reason? Is there a way to bypass this?

A few Mozilla sites are blocked to all content scripts for security reasons, since they expose APIs to install add-ons. There’s no way to bypass this using the WebExtensions API. There’s an open bug to address this, but it’s not a high priority right now.

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Thanks for reply.

Does this only apply to Mozilla pages or some other sites too? I’m asking, because I do not know if I may face similar issue on other sites.

There are only 2 or 3 Mozilla sites that are blocked. I think the only one not under mozilla.com or mozilla.org is https://testpilot.firefox.com/

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Ok. Thanks for you help!