Annotea Ubimarks is an application of Annotea shared bookmarks in Mozilla. It helps users to easily organize Web information by using familiar concepts, share findings with trusted peer groups and benefit from the underlying Semantic Web technologies.
In the past, the Google Toolbar was only available for IE on windows. Now, it has been integrated into Netscape or Mozilla by emulating all of the basic search functionality of the toolbar.
Ontomarks is a Mozilla Firefox Extension that allows for the definition of personal ontologies by searching the Web with Google. Ontologies are stored in a RDF file that can be used by other Semantic Web applications.
Open-site PHP code.
The Standard-Sitemap Navigator is a Firefox extension to help navigate websites. The webmaster of a site can provide a navigational sitemap in XML, and this extension fetches it and displays it as you visit.
This Firefox extension adds a sidebar to Firefox that allows searching with Yahoo! Search, via a Web Services API.