Firefox is a optional application used in our organization. There about 2000 Firefox users. We have VPN portal running from web interface, which uses Juniper Client to connect intranet. Until Firefox version 6 it was working ok. Since Firefox 7, whenever we launch the portal, instead of running the add-on JuniperSetupClientInstaller.exe automatically, it asks to save file. I save it, run it and relaunch the Firefox and go to the portal. And I get the same "Save" prompt. The site requires Java and this plugin. Java is installed but I can not get this plugin work. It works fine with IE and it works in Firefox with "IE tab 2(3.5.9.1)" enabled for this site, which is pretty much the same IE running on the background