Firefox: No Tab Initially Active on Options Page

[rthaut]

This is a bug from #58.

With the new tabbed layout for the Options page, Firefox does NOT show any tab focused/active initially.

This problem does not exist in Chrome, nor does it exist when opening the Options page separately. Additionally, it was NOT an issue when the extension was loaded temporarily via web-ext.

[rthaut]

This is caused by setting privacy.resistFingerprinting to true, although I haven't (yet) found proper documentation of this behavior anywhere.

Unlike #62 and #63, I don't really have an explanation as to why enabling privacy.resistFingerprinting causes this. My best guess right now is that it might be something in the JS from Shoelace CSS that provides the tab functionality.

Ideally it would be nice to detect this somehow (or detect the resulting incorrect functionality) and display a warning to the user, perhaps on the Options page and/or as a browser notification.

For now this should at least be documented on the Project Page as a FAQ and/or on the Options documentation page.