I'd read about 29 on The Register, but this thread prompted me to run the update on a laptop that was on 28, but with a slightly different profile from my other computers. It looked okay with Classic Theme Restorer, but after a restart with the addition of cstbb it lost my bookmarks toolbar and would not restore it. Some commands required a second click to activate. IOW borked. Even before it went pear shaped, it had extra wasted space above and below the address bar. Vertical space is critical in this age of widescreens.
I've installed FF ESR and it picked up the profile from the 29 install, which I did not remove. It appears to have installed over the 29 install, despite changing the ESR install location to \Mozilla\Firefox ESR\.
Does anyone know if you can move a FF profile to Pale Moon? I noticed Pale Moon has a version optomized for Atom cpus. I'll be trying it on an Atom desktop.
Mozilla appears to have seen the growing market share of Chrome and blinked. I tried Chrome long ago and hated it, but I have FF highly customized to operate the way I want. I'm very frustrated with developers mucking around with the interfaces for no good reason (Unity, Win 8, etc.) instead of fixing the core operating problems. In the case of FF, it has memory problems again. Back at FF 3.xx or 4.xx it could handle about twice as many open tabs as it can currently.