Foxit Reader
Latest standalone install used by me is attached below. Add .exe after the file name after download.
main site:
http://www.foxitsoftware.com/Secure_PDF_Reader
Direct download:
http://www.foxitsoftware.com/downloads/latest.php?product=Foxit-Reader
Foxit Firefox Plugin installs a simple Foxit Reader into the Firefox web browser, this free add-on allows users to display, view, edit and print PDF documents in the browser.
Latest Firefox plugin used by me is attached below. See instructions for installation in browser.
http://www.foxitsoftware.com/Secure_PDF_Reader/addons.php
From the site:
To manually install a critical or an advanced add-on, please run Foxit Reader, and then go to "Help" > "Install Updates" > browse and choose the related downloaded package, and then click the "Open" button. When you're done, click "Done" to finish the installation.
plugin site: (instructions & downloads for various plugins)