GroupDocs Online Document Viewer
is a web-based application that allows you to open office files and images directly in a web-browser, regardless of whether you have the software that was used for creating them, or not. This is a universal document viewer that reduces the need for installing tons of software required to open each individual file format. It allows you to view literally all types of word processing documents (DOC, DOCX, TXT, RTF, ODT), PowerPoint presentations (PPT, PPTX), SpreadSheets (XLS, XLSX), portable files (PDF), and image files (JPG, BMP, GIF, TIFF).
GroupDocs Viewer is a mobile-ready application, meaning that you can view documents from any web-enabled device.
With this add-on for FireFox, it is now even easier to access, view and manage documents in your GroupDocs account. You can do this from a small widget that will appear in the bottom-left corner of your FireFox browser, after installing the add-on. This way all your documents will always be under your hands and you won't need to log in to your account through the GroupDocs website each time you want to open a document.
GroupDocs Online Document Viewer Website: http://groupdocs.com/apps/viewer
Visit our Github project for feedback and issue reports: https://github.com/groupdocs/groupdocs-firefox-viewer-source