Ignore errors created from extensions

[niemyjski]

TypeError: Cannot read property 'push' of undefined
at Object.logRow() in chrome-extension://bmagokdooijbeehmkpknfglimnifench/firebug-lite.js:line 30905:col 26
at Object.logFormatted() in chrome-extension://bmagokdooijbeehmkpknfglimnifench/firebug-lite.js:line 30894:col 17
at Object.sysout() in chrome-extension://bmagokdooijbeehmkpknfglimnifench/firebug-lite.js:line 30842:col 17
at Object.CssAnalyzer.processAllStyleSheets() in chrome-extension://bmagokdooijbeehmkpknfglimnifench/firebug-lite.js:line 25751:col 17
at Object.initialize() in chrome-extension://bmagokdooijbeehmkpknfglimnifench/firebug-lite.js:line 6289:col 29
at <anonymous>() in chrome-extension://bmagokdooijbeehmkpknfglimnifench/firebug-lite.js:line 9716:col 29
at t() in https://cdn.rawgit.com/exceptionless/Exceptionless.JavaScript/v1.4.3/dist/exceptionless.min.js:line 1:col 260
at t() in https://test/Content/js/Exceptionless/exceptionless.min.js:line 1:col 260