Comment 10 for bug 185622

This is probably a transitional issue. In my case the problem happened with dist-upgrade from Gutsy to Hardy, then a week or so later the dist-upgrade of Firefox 2 to Firefox 3b3 appeared and I did that. After that Firefox 2 was no longer on the system, so it was not a question of selecting the defaults, it was the fact that the dist-upgrade set my Preferred Applications setting for Web Browser to 'Custom', pointing to a file that did not exist. Swapping back to Firefox as the preferred browser solved my problem. I may not be able to reproduce the sequence since there have been hundreds of updates since my upgrade from Gutsy to Hardy.