Firefox fails to download pages in Manifest V3

[HojjatKamyabi]

Page downloads work in Chrome and Firefox Manifest V2, but fail in Firefox Manifest V3.

Error:
Uncaught Error: Type error for parameter options (Error processing url: Error: Access denied for URL data:text/html;charset=utf-8,%3C!DOCTYPE%20html%3E%20%3Chtml%20lang%3Den-US%20class%3D%22has-zcm%20is-link-style-exp%20is-link-order-exp%20is-link-breadcrumb-exp%20is-related-search-exp%20is-vertical-tabs-exp%20js%20no-touch%20opacity%20csstransforms3d%20csstransitions%20svg%20cssfilters%20is-not-mobile-device%20full-urls%20breadcrumb-urls%20dark-header%20dark-bg%20react%20has-footer%20set-header--floating%22%20style%3D'--sds-color-palette-black%3A%23000000%3B--sds-color-palette-white%3A%23FFFFFF%3B--sds-color-palette-transparent%3Atransparent%3B--sds-color-palette-gray-100%3A%23111111%3B--sds-color-palette-gray-95%3A%23161616%3B--sds-color-palette-gray-90%3A%23222222%3B--sds-color-palette-gray-85%3A%23333333%3B--sds-color-palette-gray-80%3A%23444444%3B--sds-color-palette-gray-70%3A%23666666%3B--sds-color-palette-gray-60%3A%23888888%3B--sds-color-palette-gray-50%3A%23aaaaaa%3B--sds-color-palette-gray-4…

[yfiua]

'd try https://github.com/gildas-lormeau/SingleFile-MV3