Crash ID: bp-52b6c63a-8801-4d8d-a40b-397842151219 Crash ID: bp-ac0291ec-d672-49c8-b873-0adcc2151219 I could list a dozen more crash ID's After updating to 43.0.1 and rebooting the computer firefox now crashes when launched. I uinstalled, ran a registry cleaner (CC cleaner), downloaded a new installer, ran it, shut down the computer. Turned it on. Same problem: I start firefox, it looks like its going to work and than within seconds of it getting to the default homepage it crashes and wants to send a report. Rinse and repeat, there's nothing else it will do but crash even with a fresh install. OS: Windows vista 64, all current updates (dec 19, 2015) running norton360 (fully up to date) for antivirus. Tried to use the automatically add (troublshooting information) on this support page: launched firefox in safemode; still crashed upon launching. new Crash ID: bp-ed56d903-e243-4996-a295-4100c2151219 Been using firefox on this computer for almost 10 years without major problems (the occasional flash crash, etc) until now.