OutWit Docs, this perfect add-on for your Firefox 3 allows you to easily search, download, and save documents from the web.
    Save your precious hours spent daily searching the web for any particular document. This outstanding add-on for your Firefox 3 will automatically search the web for you to find various types of documents and also download them to your hard disk. This amazing program comprising the web collection engine, supports dozens of recognition and extraction functions to make your document search faster. It supports the option to explore any Web site and common search engines to find your documents that include Office (DOC, DOCX, XLS, XLSX, PPT, PPTX), CSV, SWF, or PDF files. The program also supports: multiple search support, one click save of multiple documents, auto-browsing, auto-catching, and support for various sorting and filtering options.
    OutWit Docs this free to use add-on for your Firefox 3 is compatible with Windows, Mac OS, and Linux.