To use these add-ons, you'll need to download Firefox.

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Iceggiren i Laboratory (Content Security Policy / CSP Toolkit)

Laboratory (Content Security Policy / CSP Toolkit) sɣur April King

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Icegger-it Sylvain Giroux
sɣur Sylvain Giroux, kahdeksan vuotta sitten
This is a great tool to use along with observatory.mozilla.org to help you scan and fix your website's CSP headers.

The instruction video from the description is very helpful too!