Today, in Firefox, I'm back to where the manga reader successfully loads when privacy.resistFingerpring is set to FALSE.
The web console doesn't reveal any outright errors, so this seems like significant progress. Thanks to everyone working on this!
In web tools, all network items are succeeding. The console gives these warning items...
Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. stylesheets-manager.js:664:11
Preload of https://labs.j-novel.club/embed/v2/qsc_worker.js?v=1.0.3 was ignored due to unknown “as” or “type” values, or non-matching “media” attribute. PRT-3SW6OYA
Preload of https://labs.j-novel.club/embed/v2/drm_worker.js?v=1.0.3 was ignored due to unknown “as” or “type” values, or non-matching “media” attribute. PRT-3SW6OYA
downloadable font: Glyph bbox was incorrect (glyph ids 17 26) (font-family: "breader" style:normal weight:400 stretch:100 src index:1) source: https://labs.j-novel.club/embed/v2/5e412dbde1fe76b9cada.ttf?h0ib59
The resource at “https://labs.j-novel.club/embed/v2/dc8666fd2134bed76766.svg” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. PRT-3SW6OYA
The resource at “https://labs.j-novel.club/embed/v2/75171192225d219a4941.svg” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. PRT-3SW6OYA