Mozilla Firefox- Firefox is a free, open-source web browser for Windows, Linux and Mac OS X and is based on the Mozilla codebase. It is small, fast and easy to use, and offers many advantages over Internet Explorer, such as the ability to block pop-up windows.

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For most users, this free package can rival MS Office. OpenOffice.org includes powerful programs for creating interactive text documents, spreadsheets, presentations, and diagrams. Edit basic documents such as a letter or a fax, but you can also perform complex and multipart documents with bibliographies, reference tables, and indexes. OpenOffice.org lets you open and save documents in MS Office, PDF, HTML, XML, and StarOffice. formats. If you are looking for an alternative office suite check out Open Office.