I've been waiting for a replacement for "Add Bookmark Here" for a very long time & very happy to have found one today. I do miss being able to use that extension entirely from the keyboard, since it also created (optionally) an "Add Bookmark Here" item on the bookmarks menu itself, allowing it to be selected entirely with the arrow keys... while it's only possible to use "Bookmark Tab Here" with the keyboard alone if one uses the "Menu" key on the keyboard to pop up the context menu. (P.S. EDIT: the response is absolutely true, and I believe the Firefox developers need to loosen up the API when it comes to bookmark data: too many things taken away in the name of security.)