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Why won't Citrix web app (XenApp 12) not open in FF 3.6x?

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I have FF 3.6x installed on 2 Win 7 Pro machines and the Citrix web app for connecting to our Citrix Presentation server will not open (CitrixOnlinePluginWeb_ver_12). I have changed the application to use Citrix (not open in a FF tab) but it still will not work.

This same application opens fine in IE8 under Win 7 Pro. Now the real hooker- the application does open in FF 3.6x under WinXP Pro sp3.

This happened

Every time Firefox opened

== I have only used FF 3.6x on my Win7 Pro machines

I have FF 3.6x installed on 2 Win 7 Pro machines and the Citrix web app for connecting to our Citrix Presentation server will not open (CitrixOnlinePluginWeb_ver_12). I have changed the application to use Citrix (not open in a FF tab) but it still will not work. This same application opens fine in IE8 under Win 7 Pro. Now the real hooker- the application does open in FF 3.6x under WinXP Pro sp3. == This happened == Every time Firefox opened == I have only used FF 3.6x on my Win7 Pro machines

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Try XenApp client 11.2 or lower.

In XenApp 12 they removed support for launching published applications via '.ica' files.

Firefox and other browsers which do not utilize the 'Active-X' method of launching applications still require support for .ica files. This has been broken in version 12 of the Citrix client software :(