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Freeze on deleting tab; touchscreen

Posted

I have a unique and perplexing touchscreen issue using the latest Firefox browser on a 2017 Surface Pro (8/256) with the latest software and firmware updates.

When I add a new tab and subsequently try to delete that new tab, Firefox often freezes meaning that the browser does not feedback/refresh on my clicking (touching). HOWEVER when I force a browser refresh by clicking on any other window Firefox refreshes and acts on all the clicks I made while it was frozen. The clicks were processed by Firefox but it appears that the browser is not repainting after each click. To add insult to injury when I use a USB mouse this does not occur. Also I run identical Firefox on another desktop via mouse with no issues.

Certainly this seems to point to a Windows software issue but this issue does happen with any other apps including IE and Edge.

Among other things, actions I have tried include:

1. Run in safe mode 2. Re-install with new profile 3. Toggle many of recommended about:config settings 4. Change themes 5. Re-installed Windows touch screen driver

Below is my troubleshooting report.

Any ideas? Richard

I have a unique and perplexing touchscreen issue using the latest Firefox browser on a 2017 Surface Pro (8/256) with the latest software and firmware updates. When I add a new tab and subsequently try to delete that new tab, Firefox often freezes meaning that the browser does not feedback/refresh on my clicking (touching). HOWEVER when I force a browser refresh by clicking on any other window Firefox refreshes and acts on all the clicks I made while it was frozen. The clicks were processed by Firefox but it appears that the browser is not repainting after each click. To add insult to injury when I use a USB mouse this does not occur. Also I run identical Firefox on another desktop via mouse with no issues. Certainly this seems to point to a Windows software issue but this issue does happen with any other apps including IE and Edge. Among other things, actions I have tried include: 1. Run in safe mode 2. Re-install with new profile 3. Toggle many of recommended about:config settings 4. Change themes 5. Re-installed Windows touch screen driver Below is my troubleshooting report. Any ideas? Richard

Modified by Richard567

Additional System Details

Installed Plug-ins

  • Shockwave Flash 28.0 r0

Application

  • Firefox 59.0.2
  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
  • Support URL: https://support.mozilla.org/1/firefox/59.0.2/WINNT/en-US/

Extensions

  • Adblock Plus 3.0.2 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
  • Google Analytics Opt-out Add-on (by Google) 1.0.7 ({6d96bb5e-1175-4ebf-8ab5-5f56f1c79f65})
  • Kee 2.3.19.1 (keefox@chris.tomlinson)
  • Open in IE 0.2.0 ({5610edea-88c1-4370-b93d-86aa131971d1})
  • New Tab Override 12.0.0 (newtaboverride@agenedia.com) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: Intel(R) HD Graphics 620
  • adapterDescription2:
  • adapterDeviceID: 0x5916
  • adapterDeviceID2:
  • adapterDrivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterSubsysID: 00261414
  • adapterSubsysID2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • crashGuards: []
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 10.0.16299.15
  • driverDate: 7-25-2017
  • driverDate2:
  • driverVersion: 22.20.16.4749
  • driverVersion2:
  • featureLog: {u'fallbacks': [], u'features': [{u'status': u'available', u'description': u'Compositing', u'name': u'HW_COMPOSITING', u'log': [{u'status': u'available', u'type': u'default'}]}, {u'status': u'available', u'description': u'Direct3D11 Compositing', u'name': u'D3D11_COMPOSITING', u'log': [{u'status': u'available', u'type': u'default'}]}, {u'status': u'available', u'description': u'Direct2D', u'name': u'DIRECT2D', u'log': [{u'status': u'available', u'type': u'default'}]}, {u'status': u'available', u'description': u'Direct3D11 hardware ANGLE', u'name': u'D3D11_HW_ANGLE', u'log': [{u'status': u'available', u'type': u'default'}]}, {u'status': u'available', u'description': u'GPU Process', u'name': u'GPU_PROCESS', u'log': [{u'status': u'available', u'type': u'default'}]}, {u'status': u'unavailable', u'description': u'WebRender', u'name': u'WEBRENDER', u'log': [{u'status': u'opt-in', u'message': u'WebRender is an opt-in feature', u'type': u'default'}, {u'status': u'unavailable', u'message': u"Build doesn't include WebRender", u'type': u'runtime'}]}, {u'status': u'available', u'description': u'Off Main Thread Painting', u'name': u'OMTP', u'log': [{u'status': u'available', u'type': u'default'}]}, {u'status': u'available', u'description': u'Advanced Layers', u'name': u'ADVANCED_LAYERS', u'log': [{u'status': u'available', u'type': u'default'}]}]}
  • info: {u'AzureContentBackend (UI Process)': u'skia', u'AzureCanvasBackend (UI Process)': u'skia', u'ApzWheelInput': 1, u'ApzDragInput': 1, u'ApzKeyboardInput': 1, u'ApzTouchInput': 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
  • webgl1DriverExtensions: GL_ANGLE_client_arrays 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_program_cache_control GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_robust_resource_initialization 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_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
  • 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 620 Direct3D11 vs_5_0 ps_5_0)
  • webgl1Version: OpenGL ES 2.0 (ANGLE 2.1.0.db3422764a9b)
  • webgl1WSIInfo: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000e413) EGL_VERSION: 1.4 (ANGLE 2.1.0.db3422764a9b) 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_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_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_ANGLE_display_robust_resource_initialization
  • webgl2DriverExtensions: GL_ANGLE_client_arrays GL_ANGLE_depth_texture 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_robust_resource_initialization 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_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
  • 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 620 Direct3D11 vs_5_0 ps_5_0)
  • webgl2Version: OpenGL ES 3.0 (ANGLE 2.1.0.db3422764a9b)
  • webgl2WSIInfo: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000e413) EGL_VERSION: 1.4 (ANGLE 2.1.0.db3422764a9b) 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_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_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_ANGLE_display_robust_resource_initialization
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11
  • windowUsingAdvancedLayers: True

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
Shadow110 1072 solutions 14836 answers
  • Repair System Registry and Files

Find the Dos Prompt Right or Powershell Click and Run as Administrator then : Copy/Paste to Dos Window : DISM /Online /Cleanup-Image /RestoreHealth then hit Enter. Reboot when completed. Note : DISM goes up to Microsoft for new ones.

Is issue still there ? If yes : SAFE MODE

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (file: localstore-safe.rdf)
  • Javascript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected

TEST''''is issue still there ?

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

*Repair System Registry and Files Find the Dos Prompt Right or Powershell Click and Run as Administrator then : Copy/Paste to Dos Window : DISM /Online /Cleanup-Image /RestoreHealth then hit Enter. Reboot when completed. Note : DISM goes up to Microsoft for new ones. Is issue still there ? If yes : SAFE MODE *https://support.mozilla.org/kb/Safe+Mode *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes In Firefox Safe mode these changes are effective: *all extensions are disabled (about:addons) *default theme is used (no persona) *userChrome.css and userContent.css are ignored (chrome folder) *default toolbar layout is used (file: localstore-safe.rdf) *Javascript JIT compilers are disabled (prefs: javascript.options.*jit) *hardware acceleration is disabled (Options > Advanced > General) *plugins are not affected *preferences are not affected TEST'''''''''is issue still there ? Please let us know if this solved your issue or if need further assistance.

Question owner

Thanks for your reply. Sorry, running dism did not solve the issue. In my original post I indicated I had already tried safe mode.

This is a rather unusual problem. As a retired Software Engineer, my instincts tell me this is a Firefox tab issue but I have been wrong before :)!

Thanks for your reply. Sorry, running dism did not solve the issue. In my original post I indicated I had already tried safe mode. This is a rather unusual problem. As a retired Software Engineer, my instincts tell me this is a Firefox tab issue but I have been wrong before :)!
Shadow110 1072 solutions 14836 answers

Hi, yes knew you ran Safe Mode but possibly did not trouble shoot Extensions.

delete a tab ? you mean close a tab. ?

If this is a older system with low ram and old video card as was last updated driverDate: 7-25-2017 then running Win10 and version 57+ would use lots of ram and maybe ram on the video card also which would explain the issue. Below may help the issue, you can test if it does. Go to the 3 Bar Menu then Options --> General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please. Note : Hardware Acceleration is for Video Card, Monitor to see if remain off or to turn back on.

Can try these things :

Also 7min fix : uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) & C:\ProgramData Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do :

Reinstall with Current Release Firefox 59.0.2 with a Full Version Installer

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

Hi, yes knew you ran Safe Mode but possibly did not trouble shoot Extensions. delete a tab ? you mean close a tab. ? If this is a older system with low ram and old video card as was last updated driverDate: 7-25-2017 then running Win10 and version 57+ would use lots of ram and maybe ram on the video card also which would explain the issue. Below may help the issue, you can test if it does. Go to the 3 Bar Menu then Options --> General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please. Note : Hardware Acceleration is for Video Card, Monitor to see if remain off or to turn back on. Can try these things : *https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding *https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster *https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix *https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram *https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding Also 7min fix : uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) & C:\ProgramData Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do : *https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles *https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer Reinstall with Current Release Firefox 59.0.2 with a Full Version Installer *https://www.mozilla.org/firefox/all/ Please let us know if this solved your issue or if need further assistance.

Question owner

As mentioned in the original post this is a new Surface Pro with 8gb of memory/256gb disk. This is more than adequate for Windows 10. I already tried most, if not all, of your sound suggestions and it still breaks. I could re-install Windows but I don't have the appetite for that.

I also ran a background program to see what processes might be stealing focus from Firefox and there were none.

As for tabs, I hit the "+" and then "x" for opening/closing the tab. It does not break 100% of the time but it is certainly happens enough to be quite annoying as pages often spawn new tabs. Upon closing/deleting the just opened tab Firefox often freezes.

Again I do not have this issue appearing with any other apps including those I have written myself.

This apparently is not happening to other folks so unless you have some esoteric approach it might be best to drop this.

I do appreciate the prompt responses.

Richard

As mentioned in the original post this is a new Surface Pro with 8gb of memory/256gb disk. This is more than adequate for Windows 10. I already tried most, if not all, of your sound suggestions and it still breaks. I could re-install Windows but I don't have the appetite for that. I also ran a background program to see what processes might be stealing focus from Firefox and there were none. As for tabs, I hit the "+" and then "x" for opening/closing the tab. It does not break 100% of the time but it is certainly happens enough to be quite annoying as pages often spawn new tabs. Upon closing/deleting the just opened tab Firefox often freezes. Again I do not have this issue appearing with any other apps including those I have written myself. This apparently is not happening to other folks so unless you have some esoteric approach it might be best to drop this. I do appreciate the prompt responses. Richard

Question owner

I suggest that the developers take a hard look at the Tab Opening/Closing logic and assure that there are no race conditions.

In the meantime I have switched to Chrome.

No other app on my machine has this issue thus my suggestion above.

BTW are you developer and if not, do you have access to them?

Richard

I suggest that the developers take a hard look at the Tab Opening/Closing logic and assure that there are no race conditions. In the meantime I have switched to Chrome. No other app on my machine has this issue thus my suggestion above. BTW are you developer and if not, do you have access to them? Richard
philipp
  • Top 25 Contributor
  • Moderator
5306 solutions 23424 answers

hi richard, thanks for reporting this. could you capture and share a performance profile while the hang is in place - this could provide more insights into what's going wrong? thank you

hi richard, thanks for reporting this. could you capture and share a performance profile while the hang is in place - this could provide more insights into what's going wrong? thank you

Question owner

Hi Philipp,

Not sure if I can since Firefox is totally frozen. Also I do not know what performance data you are seeking. If you wish you can PM me and we converse over the phone.

Richard

Hi Philipp, Not sure if I can since Firefox is totally frozen. Also I do not know what performance data you are seeking. If you wish you can PM me and we converse over the phone. Richard
philipp
  • Top 25 Contributor
  • Moderator
5306 solutions 23424 answers

hi the link in my prior reply explains the procedure. first you'd have to install the gecko profiler addon, click on its toolbar button and hit on record. then try to produce the hang and if you are done and back to a mode that is responsive, click on the profiler icon again and click on capture. this will open the performance profile of the last few seconds that you have captured in a new tab - once it's finished loading, there's a share button on the top right that will produce a link that you could provide here or in a bug report. thank you!

hi the link in my prior reply explains the procedure. first you'd have to install the gecko profiler addon, click on its toolbar button and hit on record. then try to produce the hang and if you are done and back to a mode that is responsive, click on the profiler icon again and click on capture. this will open the performance profile of the last few seconds that you have captured in a new tab - once it's finished loading, there's a share button on the top right that will produce a link that you could provide here or in a bug report. thank you!

Helpful Reply

Can't share since Symbolicating call stacks does not finish. Should I paste the json file here?

Can't share since Symbolicating call stacks does not finish. Should I paste the json file here?
philipp
  • Top 25 Contributor
  • Moderator
5306 solutions 23424 answers

if the other method doesn't work, then yes - let's try that. you could put the profile online temporarily through send.firefox.com, please just pump up the download limit...

if the other method doesn't work, then yes - let's try that. you could put the profile online temporarily through send.firefox.com, please just pump up the download limit...

Question owner

Just finished https://send.firefox.com/download/9090b8213f/#IQMImUWMPRUQQd4J0KJqMg
philipp
  • Top 25 Contributor
  • Moderator
5306 solutions 23424 answers

thanks, this appears to be the same problem as in https://bugzilla.mozilla.org/show_bug.cgi?id=1446904

thanks, this appears to be the same problem as in https://bugzilla.mozilla.org/show_bug.cgi?id=1446904