Prevents the opening of the site bankir.ru in FF4 Rated 5 out of 5 stars

Nice extension, but in FF4 has an issue:
initially, the page http://bankir.ru appears on a couple of seconds, then cleaned and left empty :(
If you disable this extension, everything works as expected.

Exactly the same problem occurs in FF4 with Linkification add-on in Thorough mode.