Facebook PhotoZoom (add-on for Firefox)

Free download http://www.mozilla.com/en-US/products/download.html
then add-on (add to firefox) https://addons.mozilla.org/en-US/firefox/addon/125440/

A magnifier for facebook thumbnails (either profile pictures or album photos). When the mouse is over a thumbnail, a tooltip will appear with the bigger image in it. :)

Free Document viewer for doc. docx. odt. tmd. and more

Visit website : http://www.officeviewers.com
Free download no charge
Free license registration

If you want to...
+open a document created in Microsoft Word, TextMaker, or OpenDocument format, but you haven't installed the respective word processor
+send a document but you don't know whether the recipient has installed the programs to open it
+quickly view and print documents without editing them

Then you need...
+free TextMaker Viewer 2010

Supported file formats:
.docx, .docm Microsoft Word 2007 and 2010
.sxw OpenOffice.org/StarOffice Text
.dotx, .dotm Microsoft Word 2007 and 2010 templates
.rtf Rich Text Format
.doc Microsoft Word 6.0 up to Word 2010
.psw Pocket Word (Pocket PC)
.dot Microsoft Word templates 6.0 up to 2010
.pwd Pocket Word (Handheld PC)
.tmd TextMaker 6.0 up to 2010
.htm/html HTML documents
.odt OpenDocument Text
.txt Text files (DOS, Windows, Unicode, UTF-8)