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Firefox suddenly stops loading any sites; error message "your connection is not secure".

Posted

Firefox won't open any websites at all, including Firefox Support. I have tried opening in Safe Mode to disable addons, extensions and plugins. I have tried restoring Firefox to default settings. I have tried uninstalling a recent Windows update.

Firefox won't open any websites at all, including Firefox Support. I have tried opening in Safe Mode to disable addons, extensions and plugins. I have tried restoring Firefox to default settings. I have tried uninstalling a recent Windows update.

Chosen solution

This 1st : Type or paste about:studies in the address bar and press Enter (or Return) to load that page. If you are enrolled in a user interface experiment, it should be listed on this page and there should be a way to uninstall/remove or to opt out.

Can you find it there (unified-search)?

More info about SHIELD studies and how to opt out globally if you prefer: About SHIELD Studies. https://support.mozilla.org/en-US/kb/shield

Suggest : https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

fyi: graphic card drivers are from Date: 9-29-2016 suggest updating if possible. Fyi: one or more of your Extensions are not compatible with multi-processing so it is turned off. You should check your Extension Page for Legacy Extensions and see if they are going to update for Firefox Version 57 as all Legacy addons will be disabled or removed in ver 57

You can also contact the Developer of the Extensions to see if they are updating them for ver 57 Quantum release date Nov 14th https://www.mozilla.org/en-US/firefox/quantum/

Please let us know if this solved your issue or if need further assistance.

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Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; HPNTDFJS; rv:11.0) like Gecko

More Information

Application Basics
------------------
Name: Firefox
Version: 56.0.1
Build ID: 20171002220106
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0
OS: Windows_NT 10.0
Multiprocess Windows: 0/1 (Disabled by accessibility tools)
Web Content Processes:
Stylo: false (disabled by default)
Google Key: Found
Mozilla Location Service Key: Found
Safe Mode: false
Crash Reports for the Last 3 Days
---------------------------------
All Crash Reports
Firefox Features
----------------
Name: Activity Stream
Version: 0.0.0
ID: activity-stream@mozilla.org
Name: Application Update Service Helper
Version: 2.0
ID: aushelper@mozilla.org
Name: Click-to-Play staged rollout
Version: 1.4
ID: clicktoplay-rollout@mozilla.org
Name: Firefox Screenshots
Version: 10.12.0
ID: screenshots@mozilla.org
Name: Follow-on Search Telemetry
Version: 0.9.3
ID: followonsearch@mozilla.com
Name: Form Autofill
Version: 1.0
ID: formautofill@mozilla.org
Name: Multi-process staged rollout
Version: 3.00
ID: e10srollout@mozilla.org
Name: Photon onboarding
Version: 0.1
ID: onboarding@mozilla.org
Name: Pocket
Version: 1.0.5
ID: firefox@getpocket.com
Name: Shield Recipe Client
Version: 65
ID: shield-recipe-client@mozilla.org
Name: Web Compat
Version: 1.1
ID: webcompat@mozilla.org
Extensions
----------
Graphics
--------
Features
Compositing: Direct3D 11
Asynchronous Pan/Zoom: none
WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000fb3f) EGL_VERSION: 1.4 (ANGLE 2.1.0.dec065540d5f) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses
WebGL 1 Driver Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Family Direct3D11 vs_5_0 ps_5_0)
WebGL 1 Driver Version: OpenGL ES 2.0 (ANGLE 2.1.0.dec065540d5f)
WebGL 1 Driver Extensions: GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object
WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_frag_depth EXT_shader_texture_lod EXT_texture_filter_anisotropic EXT_disjoint_timer_query MOZ_debug OES_element_index_uint OES_standard_derivatives OES_texture_float OES_texture_float_linear OES_texture_half_float OES_texture_half_float_linear OES_vertex_array_object WEBGL_color_buffer_float WEBGL_compressed_texture_s3tc WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_depth_texture WEBGL_draw_buffers WEBGL_lose_context MOZ_WEBGL_lose_context MOZ_WEBGL_compressed_texture_s3tc MOZ_WEBGL_depth_texture
WebGL 2 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000fb3f) EGL_VERSION: 1.4 (ANGLE 2.1.0.dec065540d5f) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses
WebGL 2 Driver Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Family Direct3D11 vs_5_0 ps_5_0)
WebGL 2 Driver Version: OpenGL ES 3.0 (ANGLE 2.1.0.dec065540d5f)
WebGL 2 Driver Extensions: GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_norm16 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object
WebGL 2 Extensions: EXT_color_buffer_float EXT_texture_filter_anisotropic EXT_disjoint_timer_query MOZ_debug OES_texture_float_linear WEBGL_compressed_texture_s3tc WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context MOZ_WEBGL_lose_context MOZ_WEBGL_compressed_texture_s3tc
Direct2D: true
DirectWrite: true (10.0.15063.674)
GPU #1
Active: Yes
Description: Intel(R) HD Graphics Family
Vendor ID: 0x8086
Device ID: 0x0a16
Driver Version: 20.19.15.4531
Driver Date: 9-29-2016
Drivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32
Subsys ID: 227f103c
RAM: Unknown
Diagnostics
AzureCanvasAccelerated: 0
AzureCanvasBackend: direct2d 1.1
AzureContentBackend: direct2d 1.1
AzureFallbackCanvasBackend: skia
Decision Log
GPU_PROCESS:
unavailable by default: Multi-process mode is not enabled
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
unavailable by runtime: Build doesn't include WebRender
ADVANCED_LAYERS:
disabled by default: Disabled by default
Media
-----
Audio Backend: wasapi
Max Channels: 2
Preferred Channel Layout: stereo
Preferred Sample Rate: 48000
Output Devices
Name: Group
Speaker/HP (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0290&SUBSYS_103C227F&REV_1000\4&1bff7234&0&0001
Input Devices
Name: Group
Stereo Mix (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0290&SUBSYS_103C227F&REV_1000\4&1bff7234&0&0001
Microphone (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0290&SUBSYS_103C227F&REV_1000\4&1bff7234&0&0001
Mic in at front panel (black) (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0290&SUBSYS_103C227F&REV_1000\4&1bff7234&0&0001
Microphone (Realtek High Definition Audio): HDAUDIO\FUNC_01&VEN_10EC&DEV_0290&SUBSYS_103C227F&REV_1000\4&1bff7234&0&0001
Important Modified Preferences
------------------------------
accessibility.lastLoadDate: 1508612865
browser.cache.disk.capacity: 358400
browser.cache.disk.filesystem_reported: 1
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.cache.frecency_experiment: 2
browser.places.smartBookmarksVersion: 8
browser.sessionstore.upgradeBackup.latestBuildID: 20171002220106
browser.startup.homepage_override.buildID: 20171002220106
browser.startup.homepage_override.mstone: 56.0.1
browser.tabs.remote.autostart.2: true
browser.urlbar.lastSuggestionsPromptDate: 20171019
browser.urlbar.timesBeforeHidingSuggestionsHint: 0
extensions.lastAppVersion: 56.0.1
gfx.crash-guard.d3d11layers.appVersion: 56.0.1
gfx.crash-guard.d3d11layers.deviceID: 0x0a16
gfx.crash-guard.d3d11layers.driverVersion: 20.19.15.4531
gfx.crash-guard.d3d11layers.feature-d2d: true
gfx.crash-guard.d3d11layers.feature-d3d11: true
gfx.crash-guard.status.d3d11layers: 2
layers.mlgpu.sanity-test-failed: false
media.gmp-gmpopenh264.abi: x86_64-msvc-x64
media.gmp-gmpopenh264.enabled: true
media.gmp-gmpopenh264.lastUpdate: 1508459627
media.gmp-gmpopenh264.version: 1.6
media.gmp-manager.buildID: 20171002220106
media.gmp-manager.lastCheck: 1508604990
media.gmp.storage.version.observed: 1
media.hardware-video-decoding.failed: false
network.cookie.prefsMigrated: true
network.predictor.cleaned-up: true
places.database.lastMaintenance: 1508460026
places.history.expiration.transient_current_max_pages: 143970
plugin.disable_full_page_plugin_for_types: application/pdf
plugins.ctprollout.cohort: user-changed-from-test
plugins.ctprollout.cohortSample: 0.357563
security.sandbox.content.tempDirSuffix: {3e65cbcf-d6a9-477d-833d-9a9504085de1}
services.sync.declinedEngines:
storage.vacuum.last.index: 0
storage.vacuum.last.places.sqlite: 1508460023
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.
Important Locked Preferences
----------------------------
Places Database
---------------
JavaScript
----------
Incremental GC: true
Accessibility
-------------
Activated: false
Prevent Accessibility: 0
Accessible Handler Used: true
Library Versions
----------------
NSPR
Expected minimum version: 4.16
Version in use: 4.16
NSS
Expected minimum version: 3.32.1
Version in use: 3.32.1
NSSSMIME
Expected minimum version: 3.32.1
Version in use: 3.32.1
NSSSSL
Expected minimum version: 3.32.1
Version in use: 3.32.1
NSSUTIL
Expected minimum version: 3.32.1
Version in use: 3.32.1
Experimental Features
---------------------
Sandbox
-------
Content Process Sandbox Level: 3
Effective Content Process Sandbox Level: 3

cor-el
  • Top 10 Contributor
  • Moderator
15578 solutions 141067 answers
See: *https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean *https://support.mozilla.org/en-US/kb/troubleshoot-time-errors-secure-websites *https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message
Was this helpful to you?
Quote
Pkshadow
  • Top 10 Contributor
237 solutions 2528 answers

Chosen Solution

This 1st : Type or paste about:studies in the address bar and press Enter (or Return) to load that page. If you are enrolled in a user interface experiment, it should be listed on this page and there should be a way to uninstall/remove or to opt out.

Can you find it there (unified-search)?

More info about SHIELD studies and how to opt out globally if you prefer: About SHIELD Studies. https://support.mozilla.org/en-US/kb/shield

Suggest : https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

fyi: graphic card drivers are from Date: 9-29-2016 suggest updating if possible. Fyi: one or more of your Extensions are not compatible with multi-processing so it is turned off. You should check your Extension Page for Legacy Extensions and see if they are going to update for Firefox Version 57 as all Legacy addons will be disabled or removed in ver 57

You can also contact the Developer of the Extensions to see if they are updating them for ver 57 Quantum release date Nov 14th https://www.mozilla.org/en-US/firefox/quantum/

Please let us know if this solved your issue or if need further assistance.

This 1st : Type or paste about:studies in the address bar and press Enter (or Return) to load that page. If you are enrolled in a user interface experiment, it should be listed on this page and there should be a way to uninstall/remove or to opt out. Can you find it there (unified-search)? More info about SHIELD studies and how to opt out globally if you prefer: About SHIELD Studies. https://support.mozilla.org/en-US/kb/shield Suggest : https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER fyi: graphic card drivers are from Date: 9-29-2016 suggest updating if possible. Fyi: one or more of your Extensions are not compatible with multi-processing so it is turned off. You should check your Extension Page for Legacy Extensions and see if they are going to update for Firefox Version 57 as all Legacy addons will be disabled or removed in ver 57 You can also contact the Developer of the Extensions to see if they are updating them for ver 57 Quantum release date Nov 14th https://www.mozilla.org/en-US/firefox/quantum/ Please let us know if this solved your issue or if need further assistance.
Was this helpful to you? 1
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Question owner

Thank you to both responders! A link within Pkshadow's response had the solution: the device had malware installed. I ran a malware-detector which quarantined malware on the device and this solved the problem.

Thank you to both responders! A link within Pkshadow's response had the solution: the device had malware installed. I ran a malware-detector which quarantined malware on the device and this solved the problem.
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