• Disable Firefox Sync (#2337)
  
• Also fix some Sync bugs, though this no longer matters (#1361, !1463)
  
• Don't fail to save session if a blob URL is present (!1470)
  
• Fix crash when main resource response isn't ready yet (!1503)
  
• Fix application mode when always start in incognito mode setting is enabled (#2380, Christopher Davis)
  
• Fix crash when destroying window (!1538)
  
• Updated translations