Firefox on Linux doesn’t want to be beamed to Planet Gore.
A word of explanation. That post originated on a friend’s computer from which I post now and then. When I set up the code to post from that computer many months ago I linked to “Carbon Belch Day” instead of Planet Gore for reasons I don’t now recall. I just checked and the Carbon Belch Day “... site is currently down for Maintenance!” -— although there is a cached version available.