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Displaying website wrongly in fullscreen mode only - strip at the bottom of the screen

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I'm using Firefox 65.0.1 (64-bit) on Windows 10 Home (1809) OS build 17763.292. When I open Firefox on full-screen on my laptop screen, there's a strip at the bottom of the screen, hiding the bottom of the website page I'm on. The strip is like a screen shot from a previous website I might have visited. This doesn't happen if I'm not in full-screen mode, and strangely it doesn't happen if I drag the same Firefox window onto my external monitor (HDMI connected, 1080p, 24 inch). The phenomenon occurs in Private mode as well. Anyone knows anything about this bug? Is there a fix?

I'm using Firefox 65.0.1 (64-bit) on Windows 10 Home (1809) OS build 17763.292. When I open Firefox on full-screen on my laptop screen, there's a strip at the bottom of the screen, hiding the bottom of the website page I'm on. The strip is like a screen shot from a previous website I might have visited. This doesn't happen if I'm not in full-screen mode, and strangely it doesn't happen if I drag the same Firefox window onto my external monitor (HDMI connected, 1080p, 24 inch). The phenomenon occurs in Private mode as well. Anyone knows anything about this bug? Is there a fix?
Приложенные скриншоты

Выбранное решение

The phenomenon seems to have resolved itself somehow. I can't reproduce it now. I don't think I would have been able to right-click on anything as it wasn't an element, it was display issue, but thanks for the suggestion. I'll come back to this thread it if happens again in future.

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Дополнительные сведения о системе

Установленные плагины

  • Shockwave Flash 32.0 r0

Приложение

  • Firefox 65.0.1
  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
  • URL поддержки: https://support.mozilla.org/1/firefox/65.0.1/WINNT/en-GB/

Расширения

  • Adblock Plus - free ad blocker 3.4.3 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
  • Boomerang for Gmail 1.2.9 ({65e41d20-f092-41b7-bb83-c6e8a9ab0f57})
  • Browsec VPN - Free and Unlimited VPN 3.22.0 (browsec@browsec.com)
  • Google™ Shortcuts - All services at a glance 19.5.0 ({5C46D283-ABDE-4dce-B83C-08881401921C})
  • Grammarly for Firefox 8.845.2049 (87677a2c52b84ad3a151a4a72f5bd3c4@jetpack)
  • Greasemonkey 4.7 ({e4a8a97b-f2ed-450b-b12d-ee082ba24781})
  • NoScript 10.2.1 ({73a6fe31-595d-460b-a920-fcc0f8843232})
  • Speed Dial 2 2.4.1 (michal.simonfy@gmail.com)
  • Tab Session Manager 4.5.1 (Tab-Session-Manager@sienori)
  • Video DownloadHelper 7.3.5 ({b9db16a4-6edc-47ec-a1f4-b86292ed211d})
  • WOT Web of Trust, Website Reputation Ratings 20180622.0wot ({a0d7ccb3-214d-498b-b4aa-0e8fda9a7bf7})
  • Element Hiding Helper for Adblock Plus 1.4 (elemhidehelper@adblockplus.org) (Неактивно)
  • FlashGot 1.5.6.14 ({19503e42-ca3c-4c27-b1e2-9cdb2170ee34}) (Неактивно)
  • Saved Password Editor 2.10.4 (savedpasswordeditor@daniel.dawson) (Неактивно)
  • Session Manager 0.8.1.13 ({1280606b-2510-4fe0-97ef-9b5a22eafe30}) (Неактивно)
  • Showcase 0.9.5.11.1-signed.1-signed ({89506680-e3f4-484c-a2c0-ed711d481eda}) (Неактивно)
  • Speed Dial 0.9.6.18 ({64161300-e22b-11db-8314-0800200c9a66}) (Неактивно)
  • YouTube mp3 1.0.9.1-signed.1-signed (info@youtube-mp3.org) (Неактивно)

Javascript

  • incrementalGCEnabled: True

Графика

  • adapterDescription: Intel(R) HD Graphics 630
  • adapterDescription2: NVIDIA GeForce GTX 1050
  • adapterDeviceID: 0x591b
  • adapterDeviceID2: 0x1c8d
  • adapterDrivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32
  • adapterDrivers2: C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumdx.dll C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvmi.inf_amd64_9cd951c47b0da577\nvldumd.dll
  • adapterRAM: Unknown
  • adapterRAM2: 2048
  • adapterSubsysID: 11c81462
  • adapterSubsysID2: 11c81462
  • adapterVendorID: 0x8086
  • adapterVendorID2: 0x10de
  • clearTypeParameters: DISPLAY1 [ Gamma: 2.2 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 400 ] DISPLAY2 [ Gamma: 2.2 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 300 ]
  • contentUsesTiling: False
  • crashGuards: []
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 10.0.17763.168
  • driverDate: 10-17-2017
  • driverDate2: 8-13-2018
  • driverVersion: 22.20.16.4836
  • driverVersion2: 24.21.13.9901
  • featureLog: {u'fallbacks': [], u'features': [{u'status': u'available', u'description': u'Compositing', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'HW_COMPOSITING'}, {u'status': u'available', u'description': u'Direct3D11 Compositing', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'D3D11_COMPOSITING'}, {u'status': u'available', u'description': u'Direct2D', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'DIRECT2D'}, {u'status': u'available', u'description': u'Direct3D11 hardware ANGLE', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'D3D11_HW_ANGLE'}, {u'status': u'available', u'description': u'GPU Process', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'GPU_PROCESS'}, {u'status': u'opt-in', u'description': u'WebRender', u'log': [{u'status': u'opt-in', u'message': u'WebRender is an opt-in feature', u'type': u'default'}], u'name': u'WEBRENDER'}, {u'status': u'blocked', u'description': u'WebRender qualified', u'log': [{u'status': u'available', u'type': u'default'}, {u'status': u'blocked', u'message': u'Has battery', u'type': u'env'}], u'name': u'WEBRENDER_QUALIFIED'}, {u'status': u'available', u'description': u'Off Main Thread Painting', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'OMTP'}, {u'status': u'available', u'description': u'Advanced Layers', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'ADVANCED_LAYERS'}]}
  • info: {u'AzureContentBackend (UI Process)': u'skia', u'AzureCanvasBackend (UI Process)': u'skia', u'ApzWheelInput': 1, u'ApzDragInput': 1, u'AzureFallbackCanvasBackend (UI Process)': u'cairo', u'ApzAutoscrollInput': 1, u'AzureCanvasAccelerated': 0, u'AzureCanvasBackend': u'direct2d 1.1', u'AzureContentBackend': u'direct2d 1.1'}
  • isGPU2Active: False
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • offMainThreadPaintEnabled: True
  • offMainThreadPaintWorkerCount: 4
  • usesTiling: False
  • webgl1DriverExtensions: GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 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_program_cache_control 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_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba 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_compression_s3tc_srgb 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_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior 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_surfaceless_context 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 OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture
  • webgl1Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_frag_depth EXT_sRGB EXT_shader_texture_lod EXT_texture_filter_anisotropic EXT_disjoint_timer_query 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_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_depth_texture WEBGL_draw_buffers WEBGL_lose_context
  • webgl1Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 630 Direct3D11 vs_5_0 ps_5_0)
  • webgl1Version: OpenGL ES 2.0 (ANGLE 2.1.0.790e8e6b4179)
  • webgl1WSIInfo: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000014610) EGL_VERSION: 1.4 (ANGLE 2.1.0.790e8e6b4179) 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 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_MOZ_create_context_provoking_vertex_dont_care 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 EGL_KHR_debug EGL_ANGLE_explicit_context
  • webgl2DriverExtensions: GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_multiview GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control 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_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba 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_compression_s3tc_srgb 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_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior 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_surfaceless_context 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 OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture
  • webgl2Extensions: EXT_color_buffer_float EXT_texture_filter_anisotropic EXT_disjoint_timer_query OES_texture_float_linear WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context
  • webgl2Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 630 Direct3D11 vs_5_0 ps_5_0)
  • webgl2Version: OpenGL ES 3.0 (ANGLE 2.1.0.790e8e6b4179)
  • webgl2WSIInfo: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000014610) EGL_VERSION: 1.4 (ANGLE 2.1.0.790e8e6b4179) 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 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_MOZ_create_context_provoking_vertex_dont_care 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 EGL_KHR_debug EGL_ANGLE_explicit_context
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11
  • windowUsingAdvancedLayers: True

Изменённые настройки

Разное

  • User JS: Нет
  • Доступность: Нет
FredMcD
  • Top 10 Contributor
4247 решений 59410 ответов
Размещено

Looks like something invisible is on the screen. One possible cause (for example) is the ad blocker blocking the ad, but not the place holder.

Is this with many websites, some, a few?

Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

Looks like something invisible is on the screen. One possible cause (for example) is the ad blocker blocking the ad, but not the place holder. Is this with many websites, some, a few? [https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode] {web link} A small dialog should appear. Click '''Start In Safe Mode''' (not Refresh). Is the problem still there?
Размещено

Задавший вопрос

Hi. All / any websites, yea. It's not an ad, not a place holder, but a screen shot bit of the first tab I open in a session, which is then superimposed onto all other tabs. It's not part of the website being viewed, it's Firefox superimposing a strip on top. Yes, it's the same phenomenon in Safe Mode, no change, so it seems to be native to Firefox rather than anything to do with an add-on. Screen shot in Safe Mode attached. Moving from full-screen to 'unmaximised' seems to 'refresh' the strip, like it takes a new screen shot.

Hi. All / any websites, yea. It's not an ad, not a place holder, but a screen shot bit of the first tab I open in a session, which is then superimposed onto all other tabs. It's not part of the website being viewed, it's Firefox superimposing a strip on top. Yes, it's the same phenomenon in Safe Mode, no change, so it seems to be native to Firefox rather than anything to do with an add-on. Screen shot in Safe Mode attached. Moving from full-screen to 'unmaximised' seems to 'refresh' the strip, like it takes a new screen shot.
FredMcD
  • Top 10 Contributor
4247 решений 59410 ответов
Размещено

I called for more help.

Try this: Open a troubled webpage. Mouse to the problem area and Right-Click on it. Select Inspect Element.

Not take and post a screenshot.

I called for more help. Try this: Open a troubled webpage. Mouse to the problem area and Right-Click on it. Select Inspect Element. Not take and post a screenshot.
Размещено

Выбранное решение

The phenomenon seems to have resolved itself somehow. I can't reproduce it now. I don't think I would have been able to right-click on anything as it wasn't an element, it was display issue, but thanks for the suggestion. I'll come back to this thread it if happens again in future.

The phenomenon seems to have resolved itself somehow. I can't reproduce it now. I don't think I would have been able to right-click on anything as it wasn't an element, it was display issue, but thanks for the suggestion. I'll come back to this thread it if happens again in future.
FredMcD
  • Top 10 Contributor
4247 решений 59410 ответов
Размещено

Here's hoping it stays gone. Please flag your last post as Solved Problem so others will know.

Here's hoping it stays gone. Please flag your last post as '''Solved Problem''' so others will know.