Google Docs Viewer: Since Google integrated extensions in the Chrome browser, developers have quickly begun to develop free extensions to make common tasks more efficient. One issue all browsers have in my opinion is the Adobe PDF plug-in. This plug-in is slow and can crash your browser if things aren't exactly right or if the PDF has file corruption.Google has released a simple tool to allows users to view PDF files without the Adobe plug-in by using a web based service. The extension, Ultimate Google Docs Viewer, automatically reassigns links to PDFs, powerpoints (*.ppt, *.pptx), tiffs, and Microsoft Word files (*.doc, *.docx) to automatically open in the Google Docs Viewer. It also provides quick access to download the file.
More Extensions: I will be reviewing other extensions and promoting those I think are beneficial.In the meantime, I would recommend looking into the Google Chrome browser.