A problem I had twice. When I clicked on Open a new tab, the generic new tab opened and Firefox became unresponsive. I tried to open Windows Task Manager to close Firefox by pressing Ctrl-Shift-Esc but my computer froze up completely, requiring me to manually shut it down and reboot. I use Windows 7 Professional Edition. Below is the data for my browser. Application Basics ------------------ Name: Firefox Version: 53.0 Build ID: 20170413192749 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 OS: Windows_NT 6.1 Multiprocess Windows: 0/1 (Disabled by add-ons) Safe Mode: false Crash Reports for the Last 3 Days --------------------------------- All Crash Reports Extensions ---------- Name: Adblock Plus Version: 2.8.2 Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d} Name: Application Update Service Helper Version: 2.0 Enabled: true ID: aushelper@mozilla.org Name: Download YouTube Videos as MP4 Version: 1.8.10 Enabled: true ID: {b9bfaf1c-a63f-47cd-8b9a-29526ced9060} Name: Greasemonkey Version: 3.11 Enabled: true ID: {e4a8a97b-f2ed-450b-b12d-ee082ba24781} Name: Multi-process staged rollout Version: 1.14 Enabled: true ID: e10srollout@mozilla.org Name: Norton Security Toolbar Version: 2017.9.1.7 Enabled: true ID: {C1A2A613-35F1-4FCF-B27F-2840527B6556} Name: Pocket Version: 1.0.5 Enabled: true ID: firefox@getpocket.com Name: Save Button for Pinterest Version: 53.0 Enabled: true ID: {677a8f98-fd64-40b0-a883-b8c95d0cbf17} Name: Video DownloadHelper Version: 6.2.0 Enabled: true ID: {b9db16a4-6edc-47ec-a1f4-b86292ed211d} Name: Web Compat Version: 1.0 Enabled: true ID: webcompat@mozilla.org Graphics -------- Features Compositing: Direct3D 11 Asynchronous Pan/Zoom: none WebGL Renderer: Google Inc. -- ANGLE (Intel(R) Q45/Q43 Express Chipset Direct3D9Ex vs_3_0 ps_3_0) WebGL2 Renderer: WebGL creation failed: * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Exhausted GL driver caps. Audio Backend: wasapi Direct2D: Blocked for your graphics card because of unresolved driver issues. DirectWrite: true (6.2.9200.22084) GPU #1 Active: Yes Description: Intel(R) Q45/Q43 Express Chipset Vendor ID: 0x8086 Device ID: 0x2e12 Driver Version: 8.15.10.2869 Driver Date: 10-4-2012 Drivers: igdumd64 igd10umd64 igdumdx32 igd10umd32 Subsys ID: 04201028 RAM: Unknown Diagnostics AzureCanvasAccelerated: 0 AzureCanvasBackend: skia AzureContentBackend: skia AzureFallbackCanvasBackend: cairo Decision Log D3D9_COMPOSITING: disabled by default: Disabled by default DIRECT2D: Blocklisted; failure code BLOCKLIST_FEATURE_FAILURE_1180379 D3D11_HW_ANGLE: Blocklisted due to known issues; bug 1153381 GPU_PROCESS: unavailable by runtime: Multi-process mode is not enabled Important Modified Preferences ------------------------------ 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: 4 browser.download.importedFromSqlite: true browser.download.useDownloadDir: false browser.places.smartBookmarksVersion: 8 browser.search.useDBForOrder: true browser.sessionstore.upgradeBackup.latestBuildID: 20170413192749 browser.startup.homepage_override.buildID: 20170413192749 browser.startup.homepage_override.mstone: 53.0 browser.tabs.remote.autostart.2: true browser.tabs.warnOnClose: false browser.urlbar.daysBeforeHidingSuggestionsPrompt: 0 browser.urlbar.lastSuggestionsPromptDate: 20170303 dom.push.userAgentID: 1949da8b18464d819d95442bd23e7f0a extensions.lastAppVersion: 53.0 gfx.crash-guard.d3d11layers.appVersion: 53.0 gfx.crash-guard.d3d11layers.deviceID: 0x2e12 gfx.crash-guard.d3d11layers.driverVersion: 8.15.10.2869 gfx.crash-guard.d3d11layers.feature-d2d: false gfx.crash-guard.d3d11layers.feature-d3d11: true gfx.crash-guard.status.d3d11layers: 2 gfx.crash-guard.status.d3d9video: 2 media.benchmark.vp9.fps: 59 media.benchmark.vp9.versioncheck: 2 media.gmp-eme-adobe.abi: x86-msvc-x64 media.gmp-eme-adobe.lastUpdate: 1487901021 media.gmp-eme-adobe.version: 17 media.gmp-gmpopenh264.abi: x86-msvc-x64 media.gmp-gmpopenh264.lastUpdate: 1487901021 media.gmp-gmpopenh264.version: 1.6 media.gmp-manager.buildID: 20170413192749 media.gmp-manager.lastCheck: 1493476547 media.gmp-widevinecdm.abi: x86-msvc-x64 media.gmp-widevinecdm.lastUpdate: 1487901023 media.gmp-widevinecdm.version: 1.4.8.903 media.gmp.storage.version.observed: 1 media.hardware-video-decoding.failed: false media.webrtc.debug.log_file: C:\Users\Owner\AppData\Local\Temp\WebRTC.log network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1492908214 places.history.expiration.transient_current_max_pages: 134928 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true print.printer_Canon_iP7200_series.print_bgcolor: false print.printer_Canon_iP7200_series.print_bgimages: false print.printer_Canon_iP7200_series.print_duplex: -437918235 print.printer_Canon_iP7200_series.print_edge_bottom: 0 print.printer_Canon_iP7200_series.print_edge_left: 0 print.printer_Canon_iP7200_series.print_edge_right: 0 print.printer_Canon_iP7200_series.print_edge_top: 0 print.printer_Canon_iP7200_series.print_evenpages: true print.printer_Canon_iP7200_series.print_footercenter: print.printer_Canon_iP7200_series.print_footerleft: &PT print.printer_Canon_iP7200_series.print_footerright: &D print.printer_Canon_iP7200_series.print_headercenter: print.printer_Canon_iP7200_series.print_headerleft: &T print.printer_Canon_iP7200_series.print_headerright: &U print.printer_Canon_iP7200_series.print_in_color: true print.printer_Canon_iP7200_series.print_margin_bottom: 0.5 print.printer_Canon_iP7200_series.print_margin_left: 0.5 print.printer_Canon_iP7200_series.print_margin_right: 0.5 print.printer_Canon_iP7200_series.print_margin_top: 0.5 print.printer_Canon_iP7200_series.print_oddpages: true print.printer_Canon_iP7200_series.print_orientation: 0 print.printer_Canon_iP7200_series.print_page_delay: 50 print.printer_Canon_iP7200_series.print_paper_data: 1 print.printer_Canon_iP7200_series.print_paper_height: -1.00 print.printer_Canon_iP7200_series.print_paper_name: print.printer_Canon_iP7200_series.print_paper_size_unit: 0 print.printer_Canon_iP7200_series.print_paper_width: -1.00 print.printer_Canon_iP7200_series.print_resolution: 600 print.printer_Canon_iP7200_series.print_reversed: false print.printer_Canon_iP7200_series.print_scaling: 1.00 print.printer_Canon_iP7200_series.print_shrink_to_fit: true print.printer_Canon_iP7200_series.print_to_file: false print.printer_Canon_iP7200_series.print_unwriteable_margin_bottom: 0 print.printer_Canon_iP7200_series.print_unwriteable_margin_left: 0 print.printer_Canon_iP7200_series.print_unwriteable_margin_right: 0 print.printer_Canon_iP7200_series.print_unwriteable_margin_top: 0 security.sandbox.content.tempDirSuffix: {b6568bdf-af0b-4590-869e-7f300ffba044} services.sync.declinedEngines: services.sync.engine.greasemonkey: true services.sync.engine.prefs.modified: false services.sync.lastPing: 1493425492 services.sync.lastSync: Sat Apr 29 2017 11:35:04 GMT-0400 (Eastern Standard Time) services.sync.numClients: 1 storage.vacuum.last.index: 0 storage.vacuum.last.places.sqlite: 1493416694 Important Locked Preferences ---------------------------- Places Database --------------- JavaScript ---------- Incremental GC: true Accessibility ------------- Activated: false Prevent Accessibility: 0 Library Versions ---------------- NSPR Expected minimum version: 4.13.1 Version in use: 4.13.1 NSS Expected minimum version: 3.29.5 Version in use: 3.29.5 NSSSMIME Expected minimum version: 3.29.5 Version in use: 3.29.5 NSSSSL Expected minimum version: 3.29.5 Version in use: 3.29.5 NSSUTIL Expected minimum version: 3.29.5 Version in use: 3.29.5 Experimental Features --------------------- Sandbox ------- Content Process Sandbox Level: 1