Last week, when I was having a similar sort of difficulty, I
applied a RH patch that fixed a number of issues that were
experienced with the TOC in FireFox.
In some other topic, outside of Chapter 2, there is a
hyperlink to Topic 2. All hyperlinks were created in the RH
interface, using the default attribute for Display in frame. When
testing in Firefox, clicking on the link to Topic 2 results in a
brief glimpse of Topic 2, followed by a jump to the page for
Chapter 2. This happens with in other chapters as well.
This does not happen with every hyperlink to Topic 2, but it
does happen often enough for users to complain. It also seems to
have something to do with being the first hyperlink clicked in a