Certainly an option. Although quite impractical perhaps.

The best solution is to fully disable Java Script in Firefox (TBB).

See: https://bitcointalk.org/index.php?topic=331077.msg4410668#msg4410668

I just ran a new test at https://panopticlick.eff.org/ using the latest Tor Browser Bundle with Java Script fully disabled and the ID score was below 10.

Java Script is required for the following identifiers; Browser Plugin Details, Time Zone, Screen Size and Color Depth, System Fonts and the Limited supercookie test. With Java Script completely disabled all of these tests will show 'no javascript', which will be the same for all visited websites i.e. a massive privacy boost!