At the risk of repeating myself: the firefox-next PPA is not intended for production use, only for preview testing of the upcoming version of firefox. Use at your own risk, or don't use it at all. This is not the regular Ubuntu archive.
At the risk of repeating myself: the firefox-next PPA is not intended for production use, only for preview testing of the upcoming version of firefox. Use at your own risk, or don't use it at all. This is not the regular Ubuntu archive.