[nfbcs] fix for webvisum

[Bryan Schulz]

Hi,
 
I was finally able to get the webvisum captia buster working again.
You can download a prior version of firefox from
http://www.oldapps.com/firefox.php?system=Windows_7_x64
 
I chose v.35 just to go back a few years before all of the changes.
Choose custom during the installation and modify the path to something like
\firefox35 so it doesn't conflict with the current version.
You will now be able to install the webvisum addon.
On your desktop, change the name of the correct icon to something like
firefox v.35 and just use the older version when you need to solve a captia
verification.
Bryan Schulz