If I have Firefox open and close the lid, it crashes every time I reopen it. Brand new machine running macOS sierra, never happened before on my old one using mountain lion. Sometimes the crash reporter itself crashes. I tried a reinstall and nothing happened. I did import my data (bookmarks, saved searches, passwords...etc) from my old computer. Could it be something corrupted from there? Or a plugin? Plugins I have are: Flash, Silverlight, Acrobat, Creative Cloud, Bitdefender, Adblock Plus, uBlock, and Video Download Helper Crash report ID: bp-fe353503-c6e5-4465-95eb-876c72161219