Request blocked by CORS when trying to download anything

[MaddoScientisto]

Version: 1.17.14 Tested browsers: Firefox developer edition 121.0.b4, firefox 115.5.0esr

When I try to download anything I get a CORS error mentioning headers, this doesn't happen on 1.17.10

Dowloading https://instagram.fflr3-1.fna.fbcdn.net/v/t51.2885-15/404312395_252102311209315_1603083148809262124_n.jpg?stp=dst-jpg_e35&efg=eyJ2ZW5jb2RlX3RhZyI6ImltYWdlX3VybGdlbi4xNDQweDE2NjUuc2RyIn0&_nc_ht=instagram.fflr3-1.fna.fbcdn.net&_nc_cat=107&_nc_ohc=4xpymMblX5kAX_qJYOI&edm=ALQROFkBAAAA&ccb=7-5&ig_cache_key=MzI0NTQzNzUxMDE5OTcyOTMwNg%3D%3D.2-ccb7-5&oh=00_AfCjQxXco2qckDPywh-qhEkUIDy_gGsFDdtXZzq114Ec1Q&oe=656BF10E&_nc_sid=fc8dfb [Instagram-Download-Button.user.js:704:17](moz-extension://62646158-6073-4760-9255-faf858be51c9/userscripts/Instagram-Download-Button.user.js?id=67ad556a-0dad-4a7e-966f-e3220395d047)
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://instagram.fflr3-1.fna.fbcdn.net/v/t51.2885-15/404312395_252102311209315_1603083148809262124_n.jpg?stp=dst-jpg_e35&efg=eyJ2ZW5jb2RlX3RhZyI6ImltYWdlX3VybGdlbi4xNDQweDE2NjUuc2RyIn0&_nc_ht=instagram.fflr3-1.fna.fbcdn.net&_nc_cat=107&_nc_ohc=4xpymMblX5kAX_qJYOI&edm=ALQROFkBAAAA&ccb=7-5&ig_cache_key=MzI0NTQzNzUxMDE5OTcyOTMwNg%3D%3D.2-ccb7-5&oh=00_AfCjQxXco2qckDPywh-qhEkUIDy_gGsFDdtXZzq114Ec1Q&oe=656BF10E&_nc_sid=fc8dfb. (Reason: header ‘user-agent’ is not allowed according to header ‘Access-Control-Allow-Headers’ from CORS preflight response).

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://instagram.fflr3-1.fna.fbcdn.net/v/t51.2885-15/404312395_252102311209315_1603083148809262124_n.jpg?stp=dst-jpg_e35&efg=eyJ2ZW5jb2RlX3RhZyI6ImltYWdlX3VybGdlbi4xNDQweDE2NjUuc2RyIn0&_nc_ht=instagram.fflr3-1.fna.fbcdn.net&_nc_cat=107&_nc_ohc=4xpymMblX5kAX_qJYOI&edm=ALQROFkBAAAA&ccb=7-5&ig_cache_key=MzI0NTQzNzUxMDE5OTcyOTMwNg%3D%3D.2-ccb7-5&oh=00_AfCjQxXco2qckDPywh-qhEkUIDy_gGsFDdtXZzq114Ec1Q&oe=656BF10E&_nc_sid=fc8dfb. (Reason: CORS request did not succeed). Status code: (null).

TypeError: NetworkError when attempting to fetch resource. [Instagram-Download-Button.user.js:726:33](moz-extension://62646158-6073-4760-9255-faf858be51c9/userscripts/Instagram-Download-Button.user.js?id=67ad556a-0dad-4a7e-966f-e3220395d047)
    downloadResource moz-extension://62646158-6073-4760-9255-faf858be51c9/userscripts/Instagram-Download-Button.user.js?id=67ad556a-0dad-4a7e-966f-e3220395d047:726

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