This is more of a news bulletin than anything else.
My new PC has Windows 7 by default, so I am playing with it every now and then when not booting into Xubuntu 9.10. Yesterday Firefox went after an update for itself, from 3.5.6 to 3.5.7. The update went OK, but then firefox flatly refused to start. Not even showing up in Processes or Applications in the Task Manager. A reboot didn’t help either.
The resolution was to download and install Firefox 3.6 (I tried to uninstall first but Windows Control Panel told me that Firefox was already uninstalled! (go figure). Anyway all working good now.