I don't think anyone really minds if new versions are released often, but the issue of add-ons breaking because of the chosen versioning scheme is probably the largest annoyance. You can still release often without changing the major version number, at least until you can convince add-on developers to use the new SDK.
I am really disappointed by their changes to "streamline" the session manager. You can nuke the previous state by opening the browser, closing it (accidents can happen), and opening it again. All because they didn't want to automatically restore it when Firefox starts.
You must be unlucky, because I've only had excellent experiences with Amazon. They usually over pack the stuff that they send me. I once received a $4 keyboard from them in a box about 10 times the size of the keyboard itself, complete with a huge amount of paper padding.