Rick,
Based on the code for the next release:
* Ability to turn off the underlines on links.
You can do this already using Mozilla prefs. See here:
http://kmeleon.sourceforge.net/docs/mozpref.php
* Ability to read horizontal rule <hr> tag sizes.
Not sure what you want here. Can you give me an example?
* Ability to open a frame outside of its frameset.
Yes, you will be able to open a frame in a new window in the next release.
* Ability to have right click functionality (such as save-as) over image maps.
This is a Mozilla bug. Not sure if it will be fixed for the next release.
* Ability to delete bookmarks and add lines to separate sections.
Mark's awesome work on the bookmark plugin includes this.
* 'Open Window In Background' should be added, or a way to stop new windows from stealing focus on render completion after being minimalized.
Mozilla bug. It should be fixed in the next release.
Thanks for the input. We appreciate it!
Andrew