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can I run Firefox 3.6 and 6 on the same computer without upgrading as my bank only supports versions 3 & 4

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I am currently using Firefox 3.6 and want to go to version 6 but my bank only supports version 3 & 4 so i would like to install version 6 to run with version 3.6 which will only be used for internet banking. I don't want to upgrade 3.6 to 6 as I will not be able to do my banking. I live in South Africa where the banks are slow in supporting later versions of browsers. Thanks

I am currently using Firefox 3.6 and want to go to version 6 but my bank only supports version 3 & 4 so i would like to install version 6 to run with version 3.6 which will only be used for internet banking. I don't want to upgrade 3.6 to 6 as I will not be able to do my banking. I live in South Africa where the banks are slow in supporting later versions of browsers. Thanks

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