What I don't know about the program is, what info is this app collecting, that we may not know about, besides what browser & version that we're running. First off, it reported to ignore any AV/IS interference, but at the time I ran it, I was using FF 3.6.16 on Mint 9. I have nothing of value on it, and I use the built in tool to delete all history everytime I run it.
I'm a bit leery when a app, especially one that I just heard of for the first time, tells me to ignore my AV protection. If plenty of users were using it, and no reported problems, then yes, I may try it out.
For running it one time, it appears to be working OK.
Cat