Import Bookmarks Ignores targeted File

I’m setting up a new computer, and I exported my Firefox bookmarks to an HTML file. In Comodo, I attempt to Import Bookmarks from that HTML file by navigating to and selecting it.
But the imported bookmarks are Firefox’s default bookmarks (from its new installation) – not those in my HTML file.

After I import the saved bookmarks into the new Firefox, Comodo’s “import Bookmarks from Firefox” (rather than the HTML file) correctly imports them.

It appears that “Import from HTML File” ignores the HTML file and goes to Firefox’s bookmark location.

Windows 7 Porfessional, Comodo