Probably best to use an intermediate HTML-format file. I found these directions on Comodo's site:

(1) Export from Comodo Dragon

• Click the Comodo Dragon icon located at the top-left corner
• Select 'Bookmark manager' from the menu.
• Click 'Organize' and select 'Export bookmarks' from the menu.
• Choose a location where you want the bookmarks to be saved and click the 'Save' button.
• The bookmarks will be saved as a HTML file.

Source: Comodo Dragon - Importing And Exporting Bookmarks | Web Browser

(2) Import into Comodo IceDragon

• Click the IceDragon button at the top left corner:
• Select 'Bookmarks' from the menu > Show All Bookmarks.
• Click the 'Import and Backup' tab on the Library window.
• Click 'Import Import Bookmarks from HTML'.
• Navigate to the HTML file saved in your computer and click 'Open'.

Source: Importing and Exporting Bookmarks, History Page | Web Browser & Internet Solutions

Does it work?

If you previously used Firefox, I'll be curious to hear your comments about how IceDragon is different.

Regarding other settings, I don't know. Perhaps Comodo or Comodo users have some tips on that.

thanks so much for the quick response! it worked with no problem! I can't believe how easy that was!

as for the difference, I literally JUST started using dragon (both versions) and haven't quite gotten used to it yet. however, ONE BIG diff between both compared to any chrome or firefox based brands of browsers is the fact that it doesn't use quite as many separate/individual processes as the regular/original ones do/did.