Thanks for the review.

1. No, that's not possible for WebExtensions.

2. I don't know what "personal bar" means, but New Tab Override doesn't change anything with regard to toolbars. Do you mean the bookmarks toolbar? Firefox has a setting to a) always show the toolbar b) only for new tabs (but that's only the case when you override it with this add-on!) or c) never show it. I guess, you should use a) in that case.

Thank you!

Thank you!

Thank you!

Thank you!

This issue is not related to New Tab Override at all. It's a known Firefox bug that can happen under certain circumstances.

Thanks for the great rating!

Thank you!

Danke!

Thank you!

Please do not abuse the review system for support requests. If it suddenly stopped it's clear that it can't be the fault of New Tab Override as there was no update at the time of your review. Also there was no other similar report.

You can use moz-extension:// URIs now. In the future, please request features via appropriate channels instead of abusing the review system. Maybe you want to consider a better review now as your only point of criticism was addressed.