This has been happening to me regularly for at least the past month. It's definitely a problem with the FT server.

I have experienced this issue with Firefox and IE on both of my laptops in addition to workstations at work on dozens of different internet connections.

Very very frustrating!

I suspect it has something to do with the 3rd party ads. The page will essentially load completely, render fully or almost fully then quickly throw the error.

EDIT: the Firefox error log confirms problems with the ads.