IceCat Segmentation Fault

1428111167711	addons.xpi	WARN	Add-on is invalid: [Exception... "Component returned failure code: 0x80520015 (NS_ERROR_FILE_ACCESS_DENIED) [nsIFileInputStream.init]"  nsresult: "0x80520015 (NS_ERROR_FILE_ACCESS_DENIED)"  location: "JS frame :: resource://gre/modules/addons/XPIProvider.jsm :: loadManifestFromDir :: line 987"  data: no] Stack trace: loadManifestFromDir()@resource://gre/modules/addons/XPIProvider.jsm:987 < loadManifestFromFile()@resource://gre/modules/addons/XPIProvider.jsm:1080 < addMetadata()@resource://gre/modules/addons/XPIProvider.jsm:2981 < XPI_processFileChanges()@resource://gre/modules/addons/XPIProvider.jsm:3255 < XPI_checkForChanges()@resource://gre/modules/addons/XPIProvider.jsm:3428 < XPI_startup()@resource://gre/modules/addons/XPIProvider.jsm:1884 < AMI_callProviders()@resource://gre/modules/AddonManager.jsm:869 < AMI_startup()@resource://gre/modules/AddonManager.jsm:745 < AMP_startup()@resource://gre/modules/AddonManager.jsm:2318 < AMC_observe()@resource://gre/components/addonManager.js:55 < <file:unknown>
1428111167712	addons.xpi	WARN	Could not uninstall invalid item from locked install location
1428111167729	addons.xpi	ERROR	startup failed: [Exception... "Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIWindowWatcher.openWindow]"  nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)"  location: "JS frame :: resource://gre/modules/addons/XPIProvider.jsm :: XPI_showUpgradeUI :: line 2097"  data: no] Stack trace: XPI_showUpgradeUI()@resource://gre/modules/addons/XPIProvider.jsm:2097 < XPI_startup()@resource://gre/modules/addons/XPIProvider.jsm:1894 < AMI_callProviders()@resource://gre/modules/AddonManager.jsm:869 < AMI_startup()@resource://gre/modules/AddonManager.jsm:745 < AMP_startup()@resource://gre/modules/AddonManager.jsm:2318 < AMC_observe()@resource://gre/components/addonManager.js:55 < <file:unknown>