Doesnt work on some sites

[ColdSpirit0]

Sites:

• https://addons.mozilla.org/
• https://testpilot.firefox.com/

[ColdSpirit0]

A few Mozilla sites are blocked to all content scripts for security reasons, since they expose APIs to install add-ons.
https://discourse.mozilla.org/t/content-script-not-executed-on-addons-mozilla-org/19951