I have installed FH13 I can verify it solves absolutely nothing! All outstanding issues that exist in FF18 are still present including horrible battery life.
Interesting! I can no longer go to Menu > Settings > About phone > System updates >Update Android??? "Update Android" is no longer an option. In fact, can't find it ANYWHERE.
I was able to tweak FF18 to get decent battery life. FH13 made it worse. Wifi now won't shut off when phone goes in to sleep mode. Even with it set to "never on in sleep mode" in the settings.
My phone is not rooted and the stock battery sometimes lasts more than 48 hours after FF18. Don't want the fix to mess it up...
As the notes on the Software Update page located here mention, you will not see this menu option if it has not been pushed to you and you have selected install later. Otherwise, the software is pushed to you from the network.
If you manually updated your phone do you still recieve these updates because I haven't recieved anything and I'm running 4.0.3 and someone else who is under the same network is running.4.0.4