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My applications don't support Firefox 4, only Firefox 3 on a Mac. Can't find version 3.x to download--must have it/ What do I do?

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My major realtor applications for home search and contract authoring (Zipforms) do not support Firefox 4.0 only versions 3.x.

I cannot find 3.x to download--what do I do? I am on a brand new iMac 21.5, Mac OS 10.

My major realtor applications for home search and contract authoring (Zipforms) do not support Firefox 4.0 only versions 3.x. I cannot find 3.x to download--what do I do? I am on a brand new iMac 21.5, Mac OS 10.

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