X
Tap here to go to the mobile version of the site.

Support Forum

Not really tabs but here goes: whenever I close firefox while having multiple (>3)windows open only three windows will be restored when I restart firefox

Posted

Hi, whenever I restart firefox only three windows will be restored from the previous session, even if there were more windows open. The tabs themselves are all restored just fine, it's only the number of windows that's limited to three.

This issue started occuring after I upgraded to "firefox quantum" due to the tabmix plus addon (which I used as a session manager) no longer being available.

Is there any way to make firefox restore ALL previous windows that were open during the previous session?

Hi, whenever I restart firefox only three windows will be restored from the previous session, even if there were more windows open. The tabs themselves are all restored just fine, it's only the number of windows that's limited to three. This issue started occuring after I upgraded to "firefox quantum" due to the tabmix plus addon (which I used as a session manager) no longer being available. Is there any way to make firefox restore ALL previous windows that were open during the previous session?

Chosen solution

Hi hanspeter123, in case this is not a problem with leftover settings from Tab Mix Plus, here are the next things to consider:

Can you recover additional windows from the menu?

When a session has been restored, up to three previously closed windows may available on either:

  • "Library" toolbar button > History > Recently Closed Windows (and within each restored window, Recently Closed Tabs)
  • (menu bar) History > Recently Closed Windows (and within each restored window, Recently Closed Tabs)

Does that help, or were you using that already?

What method do you use to exit out of Firefox?

If you use the menu, either --

  • "3-bar" menu button > Exit
  • (menu bar) File > Exit

-- then all the windows you have open when you execute that command should be available to restore, plus the last three windows you had closed before that.

But! If you use a method that closes individual windows, whether you do that by hand or let Windows do it, then you will lose windows. By default, Firefox only retains the last three closed windows in session history, so those are the only ones that will be available to restore.

So my recommendation is, always exit out of Firefox using the menu.

However, if you want to keep using a method that closes individual windows, you could modify this setting:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful or accepting the risk.

(2) In the search box above the list, type or paste sess and pause while the list is filtered

(3) Double-click the browser.sessionstore.max_windows_undo preference to display a dialog where you can enter the desired value (for example, I increased mine from 3 to 10), then click OK

Keep in mind that saving more session history does affect performance because Firefox updates the file as often as every 15 seconds.

Read this answer in context 1

Additional System Details

Installed Plug-ins

  • Shockwave Flash 31.0 r0

Application

  • Firefox 62.0.2
  • User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0
  • Support URL: https://support.mozilla.org/1/firefox/62.0.2/WINNT/en-US/

Extensions

  • uBlock Origin 1.17.0 (uBlock0@raymondhill.net)
  • Video DownloadHelper 7.3.5 ({b9db16a4-6edc-47ec-a1f4-b86292ed211d})
  • MouseZoom 0.4.9.1-signed.1-signed ({28FAD68E-4001-48d5-B994-68069F7CFB1D}) (Inactive)
  • NoScript 10.1.9.6 ({73a6fe31-595d-460b-a920-fcc0f8843232}) (Inactive)
  • Tab Mix Plus 0.5.0.5pre.171027a1 ({dc572301-7619-498c-a57d-39143191b318}) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: NVIDIA GeForce GTX 1080 Ti
  • adapterDescription2:
  • adapterDeviceID: 0x1b06
  • adapterDeviceID2:
  • adapterDrivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
  • adapterDrivers2:
  • adapterRAM: 11264
  • adapterRAM2:
  • adapterSubsysID: 00000000
  • adapterSubsysID2:
  • adapterVendorID: 0x10de
  • adapterVendorID2:
  • contentUsesTiling: False
  • crashGuards: []
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.3.9600.18696
  • driverDate: 7-30-2018
  • driverDate2:
  • driverVersion: 24.21.13.9882
  • driverVersion2:
  • 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'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'ApzKeyboardInput': 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: 3
  • numTotalWindows: 3
  • offMainThreadPaintEnabled: True
  • offMainThreadPaintWorkerCount: 3
  • usesTiling: False
  • 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_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 (NVIDIA GeForce GTX 1080 Ti Direct3D11 vs_5_0 ps_5_0)
  • webgl1Version: OpenGL ES 2.0 (ANGLE 2.1.0.595ccab4acc3)
  • webgl1WSIInfo: EGL_VENDOR: Google Inc. (adapter LUID: 00000000000070fb) EGL_VERSION: 1.4 (ANGLE 2.1.0.595ccab4acc3) 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_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
  • 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_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 (NVIDIA GeForce GTX 1080 Ti Direct3D11 vs_5_0 ps_5_0)
  • webgl2Version: OpenGL ES 3.0 (ANGLE 2.1.0.595ccab4acc3)
  • webgl2WSIInfo: EGL_VENDOR: Google Inc. (adapter LUID: 00000000000070fb) EGL_VERSION: 1.4 (ANGLE 2.1.0.595ccab4acc3) 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_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
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11
  • windowUsingAdvancedLayers: True

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
guigs 1072 solutions 11697 answers

Hi there, I understand that when you restart Firefox that there are only 3 windows that restore, despite Tab Mix Plus being disabled in your Firefox profile. I am happy to help.

From my experience with that add-on, there are a number of about:config entries that are customized from the preferences that are set within the extension's settings. There is a way to check if any of those added entries are still controlling the # of windows that are restoring. Can you please go to about:support, click on "I understand the risks" and take a screenshot of the entries that show up when you search for "mix" and then another when you search for 'session'?

I am looking to see if there are any bold, or added configs that may still be active even though the browser has disabled the add-on.

Another troubleshooting method that might also be easier is uninstall Tab Mix Plus from the profile. Would that be an option?

Hi there, I understand that when you restart Firefox that there are only 3 windows that restore, despite Tab Mix Plus being disabled in your Firefox profile. I am happy to help. From my experience with that add-on, there are a number of about:config entries that are customized from the preferences that are set within the extension's settings. There is a way to check if any of those added entries are still controlling the # of windows that are restoring. Can you please go to about:support, click on "I understand the risks" and take a screenshot of the entries that show up when you search for "mix" and then another when you search for 'session'? I am looking to see if there are any bold, or added configs that may still be active even though the browser has disabled the add-on. Another troubleshooting method that might also be easier is uninstall Tab Mix Plus from the profile. Would that be an option?
jscher2000
  • Top 10 Contributor
8792 solutions 71898 answers

Chosen Solution

Hi hanspeter123, in case this is not a problem with leftover settings from Tab Mix Plus, here are the next things to consider:

Can you recover additional windows from the menu?

When a session has been restored, up to three previously closed windows may available on either:

  • "Library" toolbar button > History > Recently Closed Windows (and within each restored window, Recently Closed Tabs)
  • (menu bar) History > Recently Closed Windows (and within each restored window, Recently Closed Tabs)

Does that help, or were you using that already?

What method do you use to exit out of Firefox?

If you use the menu, either --

  • "3-bar" menu button > Exit
  • (menu bar) File > Exit

-- then all the windows you have open when you execute that command should be available to restore, plus the last three windows you had closed before that.

But! If you use a method that closes individual windows, whether you do that by hand or let Windows do it, then you will lose windows. By default, Firefox only retains the last three closed windows in session history, so those are the only ones that will be available to restore.

So my recommendation is, always exit out of Firefox using the menu.

However, if you want to keep using a method that closes individual windows, you could modify this setting:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful or accepting the risk.

(2) In the search box above the list, type or paste sess and pause while the list is filtered

(3) Double-click the browser.sessionstore.max_windows_undo preference to display a dialog where you can enter the desired value (for example, I increased mine from 3 to 10), then click OK

Keep in mind that saving more session history does affect performance because Firefox updates the file as often as every 15 seconds.

Hi hanspeter123, in case this is not a problem with leftover settings from Tab Mix Plus, here are the next things to consider: '''''Can you recover additional windows from the menu?''''' When a session has been restored, up to three previously closed windows may available on either: * "Library" toolbar button > History > Recently Closed Windows (and within each restored window, Recently Closed Tabs) * (menu bar) History > Recently Closed Windows (and within each restored window, Recently Closed Tabs) Does that help, or were you using that already? '''''What method do you use to exit out of Firefox?''''' '''If you use the menu''', either -- * "3-bar" menu button > Exit * (menu bar) File > Exit -- then all the windows you have open when you execute that command should be available to restore, plus the last three windows you had closed before that. '''But!''' If you use a method that closes individual windows, whether you do that by hand or let Windows do it, then you will lose windows. By default, Firefox only retains the last three closed windows in session history, so those are the only ones that will be available to restore. So my recommendation is, always exit out of Firefox using the menu. However, if you want to keep using a method that closes individual windows, you could modify this setting: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter/Return. Click the button promising to be careful or accepting the risk. (2) In the search box above the list, type or paste '''sess''' and pause while the list is filtered (3) Double-click the '''browser.sessionstore.max_windows_undo''' preference to display a dialog where you can enter the desired value (for example, I increased mine from '''3''' to '''10'''), then click OK Keep in mind that saving more session history does affect performance because Firefox updates the file as often as every 15 seconds.

Question owner

Hey, thanks alot for your help. The issue wasn't caused by any addon, I was able to recreate it in safe mode, with a completely new profile and with all addons disabled manually. Maybe I should've written that in the first post, sorry.

There weren't any entries in the "Recently Closed Windows" menu, I tried this already (maybe should've specified this aswell. Again, sorry)

I was closing the windows through "right-click taskbar icon -> close all windows" and increasing the "browser.sessionstore.max_windows_undo" setting seems to have solved my problem.

Again, thank you very much - only being able to restore 3 windows was driving me nuts for some time now. I wish I had asked here sooner instead of spending months and months trying to futily fix this myself.

Hey, thanks alot for your help. The issue wasn't caused by any addon, I was able to recreate it in safe mode, with a completely new profile and with all addons disabled manually. Maybe I should've written that in the first post, sorry. There weren't any entries in the "Recently Closed Windows" menu, I tried this already (maybe should've specified this aswell. Again, sorry) I was closing the windows through "right-click taskbar icon -> close all windows" and increasing the "browser.sessionstore.max_windows_undo" setting seems to have solved my problem. Again, thank you very much - only being able to restore 3 windows was driving me nuts for some time now. I wish I had asked here sooner instead of spending months and months trying to futily fix this myself.

Modified by hanspeter123

cor-el
  • Top 10 Contributor
  • Moderator
17574 solutions 158975 answers

Helpful Reply

Note that there are also prefs that set the number of item in the back/forward tab history as stored in sessionstore files.

  • browser.sessionstore.max_serialize_back = 10
  • browser.sessionstore.max_serialize_forward = -1

The default for max_serialize_back is 10. A value of -1 will disable this maximum and allows to keep all back history entries.

Note that there are also prefs that set the number of item in the back/forward tab history as stored in sessionstore files. *browser.sessionstore.max_serialize_back = 10 *browser.sessionstore.max_serialize_forward = -1 The default for max_serialize_back is 10. A value of -1 will disable this maximum and allows to keep all back history entries.