I can open a form but I can no longer fill in the form on Mozilla. I have no problem on other browsers.
I have been able to fill in a health claims form on Mozilla previous times. The form opens as usual but I can't fill in the information blocks. I was able to fill in the blocks when I opened the form in another browser. I have the most recent version of Adobe Reader installed.
Wšykne wótegrona (2)
hello STL1983, firefox 19 & above have introduced its own integrated pdf viewer - if you want to switch back to the plugin you've used before to view pdfs just go to firefox > options > applications & scroll down and define the default action for the portable document format (pdf).
You may not be able to use the Adobe Reader plugin in Firefox as long as the plugin.disable_full_page_plugin_for_types pref contains application/pdf.
You can set the pdfjs.disabled pref to true on the about:config page to disable the build-in PDF viewer.
You can check the value of the plugin.disable_full_page_plugin_for_types pref on the about:config page and remove the application/pdf part if present or reset the pref to the default via the right-click context menu.