Check the instructions in this article: How do I delete a bookmark?.

Yeah, I looked at that, and I can do that, but I have about 50 bookmarks I want to trash, and would rather do it in one fell swoop, not one by one.

Any thoughts why the browser won't display the "unorganized bookmarks"?

They might be placed under "Unsorted Bookmarks" category on the left sidebar of "Organize Bookmarks" window.

Those bookmarks should appear in the right-pane of the Library window, when the Bookmarks Menu folder is selected in the left-pane.

I'm sure they should be, but they ain't coming up in mine.

Wait, wait - you're right. I hadn't clicked the Bookmarks menu. Alles gutte. Danke.

You're welcome, please mark this thread as SOLVED.