What happened to the previous behavior? It was so convenient, now I am forced to manually create a new bookmark folder and save everything manually?
I see no mention of this here, and I haven't found anything under the about:config prefs that appears to address this... is this behavior gone for good? Was someone offended by it or ?
For those that noticed my previous post about the browser possibly "losing" my tabs (which ultimately could have been user error), this is not the same! In the good old days (a week ago?), the standard behavior was to offer to save everything, with the option defaulting to YES. Now, it is not even offering me the choice... sniff.
UPDATE: this is actually way more troublesome than I first thought... with being forced to go the "old school" route and explicitly "Bookmark This Group of Tabs", you also lose all the saved state, which allowed everything to reload quite quickly, without the [many] other tabs not really "hurting" until you go and try to look at them, and then still a fairly short lag to bring them up the first time.
Now, the experience is ugly and SLOW - and leaves you with mostly a lot of timed-out tabs... both of the explicit "This site timed out, do you want to try again" variety, as well as at least half of the poor things just looking blank, nothing there at all, but at least the address bar still has its contents, so you can manually force it to attempt loading that page [again].
I am thinking the difference between cleanly put-to-bed tabs with at least some state info is WAY easier and cleaner and quicker to load up... but when it knows nothing about these at all except the URLs, it tries to do load operations on everything in parallel as soon as you say to "restore all in tabs" from the bookmark folder - and fails pretty miserably.

UPDATE 2: well, it looks like this has already been fixed.

But all looks normal again, so thanks [to presumably frg?]!
Can someone offer some suggested / sample queries to run on BugZilla (I already have a long-standing account) that would show things like recent checkins that at least may have gone into these unofficial builds, as well as perhaps another query for recently reported breakages? On this last, I could actually help, as I at least used to have the "Confirm this bug as real" privilege in BugZilla, and would be happy to look at some of these and confirm or comment...