Short description
Document Map is a FireFox extension that works well with wikis. It allows you to have a tree of the headings on a page in a sidebar. This got me thinking: why couldn't the wiki itself generate a separate toc page of another page which you could then save as a bookmark to load into a sidebar. You could provide links to the sidebar page that automatically identifies them as sidebar bookmarks (see the examples at Zvon.org). See also FeatureRequests/SectionEditing.