(process:6531): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
1418698810868	GMPInstallManager.simpleCheckAndInstall	INFO	Last check was: 546664 seconds ago, minimum seconds: 86400
1418698810869	GMPInstallManager._getURL	INFO	Using url: https://aus4.mozilla.org/update/3/GMP/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml
1418698810872	GMPInstallManager._getURL	INFO	Using url (with replacement): https://aus4.mozilla.org/update/3/GMP/34.0.5/20141201171754/Linux_x86_64-gcc3/en-US/default/Linux%203.17.4-1-ARCH%20(GTK%202.24.25)/default/default/update.xml
1418698810877	GMPInstallManager.checkForAddons	INFO	sending request to: https://aus4.mozilla.org/update/3/GMP/34.0.5/20141201171754/Linux_x86_64-gcc3/en-US/default/Linux%203.17.4-1-ARCH%20(GTK%202.24.25)/default/default/update.xml
1418698810886	GMPInstallManager._getChannelStatus	INFO	request.status is: 0
1418698810887	GMPInstallManager.onErrorXML	WARN	request.status: 0 (error)
1418698810889	GMPInstallManager.simpleCheckAndInstall	ERROR	Could not check for addons
1418699229146	addons.repository	WARN	Search failed when repopulating cache
1418699229861	GMPInstallManager._getURL	INFO	Using url: https://aus4.mozilla.org/update/3/GMP/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/%LOCALE%/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml
1418699229863	GMPInstallManager._getURL	INFO	Using url (with replacement): https://aus4.mozilla.org/update/3/GMP/34.0.5/20141201171754/Linux_x86_64-gcc3/en-US/default/Linux%203.17.4-1-ARCH%20(GTK%202.24.25)/default/default/update.xml
1418699229864	GMPInstallManager.checkForAddons	INFO	sending request to: https://aus4.mozilla.org/update/3/GMP/34.0.5/20141201171754/Linux_x86_64-gcc3/en-US/default/Linux%203.17.4-1-ARCH%20(GTK%202.24.25)/default/default/update.xml
1418699229871	addons.update-checker	WARN	HTTP Request failed for an unknown reason
1418699229873	GMPInstallManager._getChannelStatus	INFO	request.status is: 0
1418699229874	GMPInstallManager.onErrorXML	WARN	request.status: 0 (error)
1418699229885	addons.update-checker	WARN	HTTP Request failed for an unknown reason

** (firefox:6531): CRITICAL **: gst_app_src_set_size: assertion 'GST_IS_APP_SRC (appsrc)' failed

** (firefox:6531): CRITICAL **: gst_app_src_set_size: assertion 'GST_IS_APP_SRC (appsrc)' failed

** (firefox:6531): CRITICAL **: gst_app_src_set_size: assertion 'GST_IS_APP_SRC (appsrc)' failed

** (firefox:6531): CRITICAL **: gst_app_src_set_size: assertion 'GST_IS_APP_SRC (appsrc)' failed

** (firefox:6531): CRITICAL **: gst_app_src_set_size: assertion 'GST_IS_APP_SRC (appsrc)' failed

(firefox:6531): Gtk-CRITICAL **: IA__gtk_clipboard_set_with_data: assertion 'targets != NULL' failed