Comment 3 for bug 396516

Bug is/was constant, happened every time.
However, On removal of Firefox 3.5.1 along with 3 versions of xul runner, replacing with a fresh Firefox 3.0.13; along with removal and reinstall of Yelp + it's deps, the problem seems to have been cured.
The 3.5 version of Firefox was insalled alongside 3.0.13 using Ubuntuzilla. I noticed that the xulrunner-1.9.2~a1 did not install with the rest this time, maybe this is the culprit?