Firefox Extension does not Work on Reader Mode

[Akaame]

Firefox extension does not pick up the web page to bookmark when Firefox Reader view is enabled. When the extension save modal is opened I see this, basically it picks up the URL about:reader?url=https%3A%2F%2Fmeinweltbuch.com%2F2023%2F05%2F17%2Froadtrip-baltikum-reisetipps-highlights-und-route-zum-nachmachen-fur-2-wochen%2F.

The highlight feature similarly does not work when I am on the reader view. Weirdly when a highlight is made on the page beforehand it is picked up during the reader mode. So in order to make a highlight you have to switch between the normal webpage and the reader mode, which is pretty inconvenient.

I am not very familiar with the codebase but can help with fixing this issue (at least for for Firefox), if any help needed.