From the big Bugzilla thread about version numbers earlier this week:
Users cannot sit on Firefox 4.x They will be updated to the latest version when they open the About dialog (or sooner) because all* but the current Firefox release are unsupported versions in the new rapid release cycle. Those not current versions do not not get critical security updates except via the current version. Firefox users will not be spread across Firefox 4, 5, 6, etc. They will be on the latest version or they will be about to be on the latest version.
Effective expiration, lack of bugfixes, and rapidly replaced by newer versions with bugfixes? By any practical definition, there is no stable version. They're all betas from here onwards. The whole notion of a release isn't that it's bug-free, but that it's supported for a reasonably-long period of time.
One of the few constants in government is the "It's not <bad-thing> when we do it" trope.
Asset forfeiture? It's not stealing when we do it. Beating an unarmed man because he was videotaping police misconduct? It's not battery when we do it. Shooting a deaf whittler in the back? It's not murder when we do it.
The opposition party always does thoughtless, foolhardy, destructive, tyrannical things. However, they're not bad when we do them. "Small government" Republicans got the country further into debt in the last ten years than it'd been in fifty, and "peace prize" Democrats still wage war overseas. Thugs, the whole lot of them.
And it should be the law: If you use the word `paradigm' without knowing what the dictionary says it means, you go to jail. No exceptions. -- David Jones