It can open archive file online and get the catalog. Currently, it support ZIP, RAR archives and ISO-9660 CD images. ArchView can support HTTP and FTP protocols. It can also handle local files via file: protocol.
Powerful and user-friendly selector utility for selecting elements and doing various actions on them. It can be used for cleaning up a page prior to printing it (by removing and isolating elements), and for web development
A free Firefox add-on that lets you skip all the clicking and waiting on sites like RapidShare, Zshare, MegaUpload, and Sharebee. Your downloads start instantly.