Is there any way to use Firefox IE tab in ubuntu platform. Any other way to test the page how it will shown by IE
From what I remember, IE tab addon delegates the rendering to IE engine, so I doubt it shall ever be available for ubuntu.
There is, however, an IE for Linux that can be run in wine here.
Other solution is to use a windows virtual machine.
Side note: Microsoft recently released a handfull of VPC images with different versions of windows and ie that can be used licen-free until the end of the year: here. I don't know if VPC images can be run in ubuntu...
IEtab is not actually am emulator. All it does is opens an instance of IE within Firefox, so it won't work on Mac or Linux unless you have some crazy install of IE for either.
I'd go with Alexey's suggestion. Either install a VM of Windows or RDC to a Windows box.
You could use some online services such as
Unfortuantely these are commercial services and carry subscription fees
Or you could setup a virtual machine with windows on it and try it in a native browser. Microsoft do provide XP images with different IE installations but I believe these are only for Virtual PC (which is windows only)