How to run TurboTax online?

One of the people from TurboTax said in response to a Linux user:

[...]you can try the link below to bypass TurboTax's system requirement checks. We can't make any guarantees that you won't run into problems though.

https://turbotax.intuit.com/login/start.jsp

Trick turbo tax into thinking you're on Windows 7 64 bit with IE9:

http://www.howtogeek.com/113439/how-to-change-your-browsers-user-agent-without-installing-any-extensions/

Check out the last section called "Mozilla Firefox"

1. Navigate to about:config

2. Accept the warning

3. Create a new string called general.useragent.override

4. Set the value to Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)

5. Close out of firefox and revisit turbotax

6. Log in and finish taxes

If that doesn't work out for you TaxAct.com does work with Linux and has comparable features to TurboTax.