I found my firefox constantly crashed recent days, while I did nothing to my computer. And Firefox used to very stable and almost never crash before. Unlike normal crashes (script not responding), firefox freeze after a few second I open it, restart firefox does not work. Sometimes Windows give me some information that tells me "plugin container.exe has stopped working" but as I said, I do nothing about plugins or software recently and the last update of firefox is about month ago. Info of crash and troubleshoot pasted TEXT_FROM_"crash report"_COPIED_BELLOW AdapterDeviceID: 0x0046 AdapterDriverVersion: 8.15.10.2312 AdapterSubsysID: 215a17aa AdapterVendorID: 0x8086 Add-ons: cehomepage%40mozillaonline.com:1.48,%7Be4a8a97b-f2ed-450b-b12d-ee082ba24781%7D:3.9,mozilla_cc2%40internetdownloadmanager.com:6.25.25,tabtweak%40mozillaonline.com:4.49,cpmanager%40mozillaonline.com:2.49,coba%40mozilla.com.cn:1.0.33,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:49.0.1,firebug%40software.joehewitt.com:2.0.17,gmailnoads%40mywebber.com:5.0.1,%7Bb9db16a4-6edc-47ec-a1f4-b86292ed211d%7D:6.1.0,e10srollout%40mozilla.org:1.3,firefox%40getpocket.com:1.0.4,webcompat%40mozilla.org:1.0 AddonsShouldHaveBlockedE10s: 1 AsyncPluginInit: 0 AvailablePageFile: 2564390912 AvailablePhysicalMemory: 492150784 AvailableVirtualMemory: 1383055360 BIOS_Manufacturer: LENOVO BlockedDllList: BreakpadReserveAddress: 34930688 BreakpadReserveSize: 67108864 BuildID: 20160922113459 CrashTime: 1475824650 E10SCohort: disqualified-test EMCheckCompatibility: true FramePoisonBase: 00000000f0de0000 FramePoisonSize: 65536 InstallTime: 1475647404 Notes: AdapterVendorID: 0x8086, AdapterDeviceID: 0x0046, AdapterSubsysID: 215a17aa, AdapterDriverVersion: 8.15.10.2312 FP(D000-L10010-W00000000-T0000) D2D1.1? D2D1.1- D3D11 Layers? D3D11 Layers+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 1098 StartupTime: 1475824549 SystemMemoryUsePercentage: 84 TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86","buildId":"20160922113459","version":"49.0.1","vendor":"Mozilla","platformVersion":"49.0.1","xpcomAbi":"x86-msvc","hotfixVersion":"20160826.01"},"partner":{"distributionId":"MozillaOnline","distributionVersion":"2015.6","partnerId":"mozillaonline","distributor":"mozillaonline","distributorChannel":"chinaedition","partnerNames":["mozillaonline"]},"system":{"memoryMB":2996,"virtualMaxMB":2048,"cpu":{"count":4,"cores":2,"vendor":"GenuineIntel","family":6,"model":37,"stepping":5,"l2cacheKB":256,"l3cacheKB":3072,"speedMHz":2394,"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2"]},"os":{"name":"Windows_NT","version":"6.1","locale":"zh-CN","servicePackMajor":1,"servicePackMinor":0,"installYear":2014},"hdd":{"profile":{"model":"Samsung SSD 850 PRO 256GB","revision":"EXM02B6Q"},"binary":{"model":"Samsung SSD 850 PRO 256GB","revision":"EXM02B6Q"},"system":{"model":"Samsung SSD 850 PRO 256GB","revision":"EXM02B6Q"}},"gfx":{"D2DEnabled":false,"DWriteEnabled":false,"adapters":[{"description":"Intel(R) HD Graphics","vendorID":"0x8086","deviceID":"0x0046","subsysID":"215a17aa","RAM":null,"driver":"igdumdx32 igd10umd32","driverVersion":"8.15.10.2312","driverDate":"2-22-2011","GPUActive":true}],"monit TEXT_FROM_"about:support"_COPIED_BELLOW Application Basics ------------------ Name: Firefox Version: 49.0.1 Build ID: 20160922113459 Update Channel: release-cck-mozillaonline User Agent: Mozilla/5.0 (Windows NT 6.1; rv:49.0) Gecko/20100101 Firefox/49.0 OS: Windows_NT 6.1 Multiprocess Windows: 0/1 (Disabled by add-ons) Safe Mode: false Crash Reports for the Last 3 Days --------------------------------- Report ID: bp-870c045c-19d5-420d-bf7b-efd892161006 Submitted: 21 hours ago All Crash Reports Extensions ---------- Name: Addons Manager Version: 2.49 Enabled: true ID: cpmanager@mozillaonline.com Name: COBA Version: 1.0.33 Enabled: true ID: coba@mozilla.com.cn Name: Firebug Version: 2.0.17 Enabled: true ID: firebug@software.joehewitt.com Name: Firefox Homepage Version: 1.48 Enabled: true ID: cehomepage@mozillaonline.com Name: Greasemonkey Version: 3.9 Enabled: true ID: {e4a8a97b-f2ed-450b-b12d-ee082ba24781} Name: IDM integration Version: 6.25.25 Enabled: true ID: mozilla_cc2@internetdownloadmanager.com Name: Multi-process staged rollout Version: 1.3 Enabled: true ID: e10srollout@mozilla.org Name: Pocket Version: 1.0.4 Enabled: true ID: firefox@getpocket.com Name: Tab Tweak Version: 4.49 Enabled: true ID: tabtweak@mozillaonline.com Name: Video DownloadHelper Version: 6.1.0 Enabled: true ID: {b9db16a4-6edc-47ec-a1f4-b86292ed211d} Name: Web Compat Version: 1.0 Enabled: true ID: webcompat@mozilla.org Name: Webmail Ad Blocker Version: 5.0.1 Enabled: true ID: gmailnoads@mywebber.com Name: FiddlerHook Version: 2.6.0.4 Enabled: false ID: fiddlerhook@fiddler2.com Graphics -------- Features Compositing: Direct3D 11 Asynchronous Pan/Zoom: none WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D11 vs_4_0 ps_4_0) Hardware H264 Decoding: Yes; Using D3D9 API Direct2D: Blocked for your graphics driver version. DirectWrite: false (6.2.9200.17568) GPU #1 Active: Yes Description: Intel(R) HD Graphics Vendor ID: 0x8086 Device ID: 0x0046 Driver Version: 8.15.10.2312 Driver Date: 2-22-2011 Drivers: igdumdx32 igd10umd32 Subsys ID: 215a17aa RAM: Unknown Diagnostics AzureCanvasAccelerated: 0 AzureCanvasBackend: skia AzureContentBackend: cairo AzureFallbackCanvasBackend: cairo Decision Log DIRECT2D: Blocklisted; failure code BLOCKLIST_FEATURE_FAILURE_DL_BLACKLIST_g984 Important Modified Preferences ------------------------------ accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 358400 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.hashstats_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 1 browser.download.importedFromSqlite: true browser.places.smartBookmarksVersion: 8 browser.sessionstore.upgradeBackup.latestBuildID: 20160922113459 browser.startup.homepage_override.buildID: 20160922113459 browser.startup.homepage_override.mstone: 49.0.1 browser.tabs.remote.autostart.2: true browser.tabs.warnOnClose: false browser.urlbar.daysBeforeHidingSuggestionsPrompt: 0 browser.urlbar.lastSuggestionsPromptDate: 20160904 dom.apps.lastUpdate.buildID: 20160922113459 dom.apps.lastUpdate.mstone: 49.0.1 dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 49.0.1 font.internaluseonly.changed: false gfx.blacklist.direct2d: 3 gfx.blacklist.direct2d.failureid: FEATURE_FAILURE_DL_BLACKLIST_g984 gfx.crash-guard.d3d11layers.appVersion: 49.0.1 gfx.crash-guard.d3d11layers.deviceID: 0x0046 gfx.crash-guard.d3d11layers.driverVersion: 8.15.10.2312 gfx.crash-guard.d3d11layers.feature-d2d: false gfx.crash-guard.d3d11layers.feature-d3d11: true gfx.crash-guard.glcontext.gfx.driver-init.direct3d11-angle: true gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle: true gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-d3d11: false gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-warp: false gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-try-d3d11: true gfx.crash-guard.status.d3d11layers: 2 gfx.crash-guard.status.d3d9video: 2 gfx.crash-guard.status.glcontext: 2 gfx.direct3d.last_used_feature_level_idx: 1 gfx.driver-init.appVersion: 42.0 gfx.driver-init.deviceID: 0x0046 gfx.driver-init.driverVersion: 8.15.10.2312 gfx.driver-init.feature-d2d: false gfx.driver-init.feature-d3d11: true gfx.driver-init.status: 2 media.gmp-eme-adobe.abi: x86-msvc-x86 media.gmp-eme-adobe.lastUpdate: 1463011511 media.gmp-eme-adobe.version: 17 media.gmp-gmpopenh264.abi: x86-msvc-x86 media.gmp-gmpopenh264.lastUpdate: 1471694159 media.gmp-gmpopenh264.version: 1.6 media.gmp-manager.buildID: 20160922113459 media.gmp-manager.lastCheck: 1475647472 media.gmp-widevinecdm.abi: x86-msvc-x86 media.gmp-widevinecdm.lastUpdate: 1475223323 media.gmp-widevinecdm.version: 1.4.8.866 media.gmp.storage.version.observed: 1 media.hardware-video-decoding.failed: false media.webrtc.debug.aec_log_dir: C:\Users\111111\AppData\Local\Temp/ media.webrtc.debug.log_file: C:\Users\111111\AppData\Local\Temp/WebRTC.log media.youtube-ua.override.to: 43 network.auth.allow-subresource-auth: 2 network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1475507748 places.history.expiration.transient_current_max_pages: 78530 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.sanitize.migrateClearSavedPwdsOnExit: true privacy.sanitize.migrateFx3Prefs: true services.sync.declinedEngines: addons,history,passwords,prefs,tabs services.sync.engine.addons: false services.sync.engine.history: false services.sync.engine.passwords: false services.sync.engine.prefs: false services.sync.engine.tabs: false storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1473163411 Important Locked Preferences ---------------------------- Places Database --------------- JavaScript ---------- Incremental GC: true Accessibility ------------- Activated: false Prevent Accessibility: 0 Library Versions ---------------- NSPR Expected minimum version: 4.12 Version in use: 4.12 NSS Expected minimum version: 3.25 Version in use: 3.25 NSSSMIME Expected minimum version: 3.25 Version in use: 3.25 NSSSSL Expected minimum version: 3.25 Version in use: 3.25 NSSUTIL Expected minimum version: 3.25 Version in use: 3.25 Experimental Features ---------------------