I've noticed too that whilst using cometbird. Try "show all bookmarks" and add them to the bookmarks toolbar. I imported my favorites from IE (which I rarely use as a browser, Firefox being my default) and then I can see them when I click on online bookmarks and then go down to the bookmarks toolbar.
Hopes this helps! :)
Tried out cometbird today and I really like it. :) Firefox is my favorite browser and this browser is really nice. I'm what you call a "computer guru" ;)
I've tried every other browser out there. cometbird for me is one of the best I've used. :)