I have what I think is a simple or basic version of Adobe Acrobat Reader for reading pdf's. I need to be able to work with an XFA-based pdf which can't be done with Acrobat reader on Firefox. The Adobe help page gives instructions on how to do so in Firefox here: https://helpx.adobe.com/livecycle/kb/xfa-forms-firefox-chrome.html However, those instructions don't appear to work with my version of Firefox (which I think is up to date). Basically, those instructions tell me to "choose Tools>Options" and then click "Applications." Those instructions are apparently out of date and Adobe Acrobat hasn't updated their instructions accordingly. Is there an alternative to allow me to work in an XFA-based pdf on Firefox? Thanks for your help and assistance.