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Firefox 60.0.2 (Mac) repeatedly opens to 'can't restore previous session', but restores after selecting 'restore previous tabs'.

Posted

Since the last update, Firefox almost always opens to a 'can't restore previous', but restores correctly after selecting 'restore previous tabs.' Also occurs with add-on's disabled.

Typically, browser screen flashes for a second on start-up, quickly closes and then reopens with the error message described above.

Only other programs resident are Onedrive, Avast (free version), Malware Bytes (free version).

Since the last update, Firefox almost always opens to a 'can't restore previous', but restores correctly after selecting 'restore previous tabs.' Also occurs with add-on's disabled. Typically, browser screen flashes for a second on start-up, quickly closes and then reopens with the error message described above. Only other programs resident are Onedrive, Avast (free version), Malware Bytes (free version).

Additional System Details

Installed Plug-ins

  • Shockwave Flash 30.0 r0

Application

  • Firefox 60.0.2
  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:60.0) Gecko/20100101 Firefox/60.0
  • Support URL: https://support.mozilla.org/1/firefox/60.0.2/Darwin/en-US/

Extensions

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription:
  • adapterDeviceID: 0x0166
  • adapterDrivers:
  • adapterRAM:
  • adapterVendorID: 0x8086
  • crashGuards: []
  • driverDate:
  • driverVersion:
  • 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'OpenGL Compositing', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'OPENGL_COMPOSITING'}, {u'status': u'unavailable', 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'status': u'unavailable', u'message': u"Build doesn't include WebRender", u'type': u'runtime'}], u'name': u'WEBRENDER'}, {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'}]}
  • info: {u'TileHeight': 512, u'ApzWheelInput': 1, u'ApzDragInput': 1, u'ApzKeyboardInput': 1, u'ApzAutoscrollInput': 1, u'AzureFallbackCanvasBackend': u'none', u'TileWidth': 512, u'AzureCanvasAccelerated': 1, u'AzureCanvasBackend': u'skia', u'AzureContentBackend': u'skia'}
  • numAcceleratedWindows: 2
  • numTotalWindows: 2
  • offMainThreadPaintEnabled: True
  • offMainThreadPaintWorkerCount: 1
  • usesTiling: True
  • webgl1DriverExtensions: GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
  • 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: Intel Inc. -- Intel HD Graphics 4000 OpenGL Engine
  • webgl1Version: 4.1 INTEL-10.32.48
  • webgl1WSIInfo: CGL
  • webgl2DriverExtensions: GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
  • 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: Intel Inc. -- Intel HD Graphics 4000 OpenGL Engine
  • webgl2Version: 4.1 INTEL-10.32.48
  • webgl2WSIInfo: CGL
  • windowLayerManagerRemote: True
  • windowLayerManagerType: OpenGL
  • windowUsingAdvancedLayers: False

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
FredMcD
  • Top 10 Contributor
4255 solutions 59584 answers

Did you want the browser to open with the last session?


You may have corrupt sessionstore [v56] sessionstore.jsonlz4 file(s). Delete all sessionstore* files and the sessionstore-backups folder.

Type about:support<enter> in the address bar.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the above file. Then rename or delete it. Restart Firefox.


Don't delete the files if you need to rescue any data from them, just move them out of the profile folder to some location where Firefox doesn't look for them. You can try to read out their contents using this tool: https://www.jeffersonscher.com/res/scrounger.html

Did you want the browser to open with the last session? You may have corrupt '''sessionstore''' [v56] '''sessionstore.jsonlz4''' file(s). Delete all '''sessionstore*''' files and the '''sessionstore-backups''' folder. Type '''about:support'''<enter> in the address bar. Under the page logo on the left side, you will see '''Application Basics. ''' Under this find '''Profile Folder. ''' To its right press the button '''Show Folder. ''' This will open your file browser to the current Firefox profile. Now '''Close Firefox. ''' Locate the above file. Then rename or delete it. Restart Firefox. '''Don't delete the files''' if you need to rescue any data from them, just move them out of the profile folder to some location where Firefox doesn't look for them. You can try to read out their contents using this tool: https://www.jeffersonscher.com/res/scrounger.html

Question owner

I took your advise and it worked until I rebooted. I then also installed a Mac OS update. The problem has come back. I will repeat the process.

I took your advise and it worked until I rebooted. I then also installed a Mac OS update. The problem has come back. I will repeat the process.
user1504726 2 solutions 48 answers

Hi, Offidano!

FredMcD said

Did you want the browser to open with the last session? You may have corrupt sessionstore [v56] sessionstore.jsonlz4 file(s). Delete all sessionstore* files and the sessionstore-backups folder. Type about:support<enter> in the address bar. Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox. Locate the above file. Then rename or delete it. Restart Firefox. Don't delete the files if you need to rescue any data from them, just move them out of the profile folder to some location where Firefox doesn't look for them. You can try to read out their contents using this tool: https://www.jeffersonscher.com/res/scrounger.html

That is not all that necessary. You can easily fix the problem by downgrading (which usually works) to a older version like 52.0. You can access that page at https://ftp.mozilla.org/pub/firefox/releases/52.0/ and install the MacOS version. Good Luck!

Hi, Offidano! ''FredMcD [[#answer-1121155|said]]'' <blockquote> Did you want the browser to open with the last session? You may have corrupt '''sessionstore''' [v56] '''sessionstore.jsonlz4''' file(s). Delete all '''sessionstore*''' files and the '''sessionstore-backups''' folder. Type '''about:support'''<enter> in the address bar. Under the page logo on the left side, you will see '''Application Basics. ''' Under this find '''Profile Folder. ''' To its right press the button '''Show Folder. ''' This will open your file browser to the current Firefox profile. Now '''Close Firefox. ''' Locate the above file. Then rename or delete it. Restart Firefox. '''Don't delete the files''' if you need to rescue any data from them, just move them out of the profile folder to some location where Firefox doesn't look for them. You can try to read out their contents using this tool: https://www.jeffersonscher.com/res/scrounger.html </blockquote> That is not all that necessary. You can easily fix the problem by downgrading (which usually works) to a older version like 52.0. You can access that page at https://ftp.mozilla.org/pub/firefox/releases/52.0/ and install the MacOS version. Good Luck!