Closed Bug 1396381 Opened 4 years ago Closed 4 years ago

empty value for app.support.baseURL redirects users to dubious websites instead of Firefox Help

Categories

(Firefox :: General, defect)

defect
Not set
normal

Tracking

()

RESOLVED WONTFIX

People

(Reporter: soeren.hentzschel, Unassigned)

References

(Blocks 1 open bug)

Details

This issue was discovered by a user in the German speaking Firefox support forum. For whatever reason the user didn't have any value in app.support.baseURL, it was an empty string.

STR:

1. set app.support.baseURL to an empty string
2. go to Help > Firefox Help
3. another example: with unsigned add-ons installed open the add-on manager and click the "learn more" link.
4. another example: with an legacy add-on installed open the add-on manager and click the legacy add-on badge.

Actual:

In step 2 Firefox opens www.firefox-help.com. In Step 3 Firefox opens www.unsigned-addons.com. In step 4 Firefox opens www.webextensions.com/.

These are all registered domains and have the potential to be abused because these domains are not under Mozilla's control!

Expected:

Mozilla can't control all domains on the world so if app.support.baseURL is changed to another domain Mozilla can't really protect the users. But at least Firefox should handle the empty string case better. Firefox should not try to interpret the IDs (or whatever this is [1],[2]) like "firefox-help" as domain names if the base url is empty.

[1] http://searchfox.org/mozilla-central/search?q=unsigned-addons&path=
[2] http://searchfox.org/mozilla-central/search?q=firefox-help&path=
(In reply to Sören Hentzschel from comment #0)
> This issue was discovered by a user in the German speaking Firefox support
> forum. For whatever reason the user didn't have any value in
> app.support.baseURL, it was an empty string.

It would be interesting to know more about how this happened. If it's just someone who played around in about:config, I don't think fixing this bug would have much user impact.
But if we suspect it's some malware that drops a line in the user's preferences in the profile to prevent access to Mozilla help sites, maybe we should try to address it. eg. by using the default value of the preference instead of the user set one.

> Mozilla can't control all domains on the world so if app.support.baseURL is
> changed to another domain Mozilla can't really protect the users. But at
> least Firefox should handle the empty string case better. Firefox should not
> try to interpret the IDs (or whatever this is [1],[2]) like "firefox-help"
> as domain names if the base url is empty.

Should we just hide these 'Learn more' links when we fail to generate a valid url for them?
> It would be interesting to know more about how this happened. If it's just someone who played around in about:config, I don't think fixing this bug would have much user impact.

The user didn't know how this happened so it's possible that it's the result of malware. Unfortunately we don't know for sure but since the user didn't know how this happened I think we can assume that the user didn't played around in about:config.

> Should we just hide these 'Learn more' links when we fail to generate a valid url for them?

I think either hiding these 'Learn more' links or using the default value are okay. Both makes sense, I am not sure which option is the better one.
(In reply to Sören Hentzschel from comment #2)
> > It would be interesting to know more about how this happened. If it's just someone who played around in about:config, I don't think fixing this bug would have much user impact.
> 
> The user didn't know how this happened so it's possible that it's the result
> of malware. Unfortunately we don't know for sure but since the user didn't
> know how this happened I think we can assume that the user didn't played
> around in about:config.

But if malware sets this then it could just set it directly to a different URL. Doesn't seem like it'd be much more than whack-a-mole to fix the empty string case but not the "different domain" case. If we add to many restrictions to the URL ("has to be something.mozilla.org" or whatever) then it's not clear to me if/why we should continue to have a pref at all.
There are so many bad things that can happen when malware has access to Firefox prefs, I'm not sure this makes a difference.

The real task here is to figure out what exactly made app.support.baseURL become an empty string. Personally, I'd bet this was changed by an add-on. I'm WONTFIXing this since I don't think we want to protect against a case that should not ever happen in the first place.

Is there any way to get e.g. about:support data from that user?
Status: NEW → RESOLVED
Closed: 4 years ago
Flags: needinfo?(cadeyrn)
Resolution: --- → WONTFIX
(In reply to Johann Hofmann [:johannh] from comment #4)
> Is there any way to get e.g. about:support data from that user?

Interestingly app.support.baseURL does not seems to be listed unter "modified preferences".

Allgemeine Informationen
------------------------

Name: Firefox
Version: 55.0.3
Build-ID: 20170824053622
Update-Kanal: release
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Betriebssystem: Windows_NT 10.0
Fenster mit mehreren Prozessen: 0/1 (deaktiviert wegen Add-ons)
Web Content Processes:
Google-Schlüssel: Gefunden
Mozilla-Location-Service-Schlüssel: Gefunden
Abgesicherter Modus: false

Absturzberichte der letzten 3 Tage
----------------------------------

Alle Absturzberichte

Firefox-Funktionen
------------------

Name: Application Update Service Helper
Version: 2.0
ID: aushelper@mozilla.org

Name: Click-to-Play staged rollout
Version: 1.2
ID: clicktoplay-rollout@mozilla.org

Name: Firefox Screenshots
Version: 10.12.0
ID: screenshots@mozilla.org

Name: Follow-on Search Telemetry
Version: 0.9.1
ID: followonsearch@mozilla.com

Name: Multi-process staged rollout
Version: 2.0
ID: e10srollout@mozilla.org

Name: Pocket
Version: 1.0.5
ID: firefox@getpocket.com

Name: Shield Recipe Client
Version: 55.1
ID: shield-recipe-client@mozilla.org

Name: Web Compat
Version: 1.1
ID: webcompat@mozilla.org

Erweiterungen
-------------

Name: Adblock Plus
Version: 2.9.1
Aktiviert: true
ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Ghostery
Version: 7.3.2.5
Aktiviert: true
ID: firefox@ghostery.com

Name: IE Tab 2 (FF 3.6+)
Version: 6.2.18.1
Aktiviert: true
ID: {1BC9BA34-1EED-42ca-A505-6D2F1A935BBB}

Name: QuickJava
Version: 2.1.2
Aktiviert: true
ID: {E6C1199F-E687-42da-8C24-E7770CC3AE66}

Name: Tab Mix Plus
Version: 0.5.0.3
Aktiviert: true
ID: {dc572301-7619-498c-a57d-39143191b318}

Name: The Addon Bar (restored)
Version: 3.2.9-compat-fixed-4
Aktiviert: true
ID: the-addon-bar@GeekInTraining-GiT

Grafik
------

Allgemeine Merkmale
Compositing: Direct3D 11
Asynchrones Wischen und Zoomen: nichts
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WebGL-1-Treiber: Renderer: Google Inc. -- ANGLE (AMD Radeon HD 8370D Direct3D11 vs_5_0 ps_5_0)
WebGL-1-Treiber: Version: OpenGL ES 2.0 (ANGLE 2.1.0.dec065540d5f)
WebGL-1-Treiber: Erweiterungen: 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-Erweiterungen: 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-Treiber: WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000006f6c) 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-Treiber: Renderer: Google Inc. -- ANGLE (AMD Radeon HD 8370D Direct3D11 vs_5_0 ps_5_0)
WebGL-2-Treiber: Version: OpenGL ES 3.0 (ANGLE 2.1.0.dec065540d5f)
WebGL-2-Treiber: Erweiterungen: 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-Erweiterungen: 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
Audio-Back-End: wasapi
Direct2D: true
DirectWrite: true (10.0.15063.483)
GPU 1
Aktiv: Ja
Beschreibung: AMD Radeon HD 8370D
Herstellerkennung: 0x1002
Gerätekennung: 0x9998
Treiber-Version: 15.201.1151.1008
Treiber-Datum: 11-4-2015
Treiber: aticfx64 aticfx64 aticfx64 amdxc64 aticfx32 aticfx32 aticfx32 amdxc32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
Subsys-ID: 00000000
RAM: 768

Weitere Informationen
AzureCanvasAccelerated: 0
AzureCanvasBackend: direct2d 1.1
AzureContentBackend: direct2d 1.1
AzureFallbackCanvasBackend: skia
Entscheidungsprotokoll
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




Wichtige modifizierte Einstellungen
-----------------------------------

accessibility.typeaheadfind: true
accessibility.typeaheadfind.flashBar: 0
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browser.cache.disk.filesystem_reported: 1
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print.printer_Microsoft_Print_to_PDF.print_paper_data: 9
print.printer_Microsoft_Print_to_PDF.print_paper_height: -1,00
print.printer_Microsoft_Print_to_PDF.print_paper_name:
print.printer_Microsoft_Print_to_PDF.print_paper_size_unit: 1
print.printer_Microsoft_Print_to_PDF.print_paper_width: -1,00
print.printer_Microsoft_Print_to_PDF.print_resolution: 600
print.printer_Microsoft_Print_to_PDF.print_reversed: false
print.printer_Microsoft_Print_to_PDF.print_scaling: 0,70
print.printer_Microsoft_Print_to_PDF.print_shrink_to_fit: false
print.printer_Microsoft_Print_to_PDF.print_to_file: false
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_bottom: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_left: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_right: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_top: 0
print.printer_PDF24_PDF.print_bgcolor: false
print.printer_PDF24_PDF.print_bgimages: false
print.printer_PDF24_PDF.print_colorspace:
print.printer_PDF24_PDF.print_command:
print.printer_PDF24_PDF.print_downloadfonts: false
print.printer_PDF24_PDF.print_duplex: -437918235
print.printer_PDF24_PDF.print_edge_bottom: 0
print.printer_PDF24_PDF.print_edge_left: 0
print.printer_PDF24_PDF.print_edge_right: 0
print.printer_PDF24_PDF.print_edge_top: 0
print.printer_PDF24_PDF.print_evenpages: true
print.printer_PDF24_PDF.print_footercenter:
print.printer_PDF24_PDF.print_footerleft: &PT
print.printer_PDF24_PDF.print_footerright: &D
print.printer_PDF24_PDF.print_headercenter:
print.printer_PDF24_PDF.print_headerleft: &T
print.printer_PDF24_PDF.print_headerright: &U
print.printer_PDF24_PDF.print_in_color: true
print.printer_PDF24_PDF.print_margin_bottom: 0.5
print.printer_PDF24_PDF.print_margin_left: 0.5
print.printer_PDF24_PDF.print_margin_right: 0.196527779102325
print.printer_PDF24_PDF.print_margin_top: 0.5
print.printer_PDF24_PDF.print_oddpages: true
print.printer_PDF24_PDF.print_orientation: 0
print.printer_PDF24_PDF.print_page_delay: 50
print.printer_PDF24_PDF.print_paper_data: -1
print.printer_PDF24_PDF.print_paper_height: 297,00
print.printer_PDF24_PDF.print_paper_name:
print.printer_PDF24_PDF.print_paper_size_type: 0
print.printer_PDF24_PDF.print_paper_size_unit: 1
print.printer_PDF24_PDF.print_paper_width: 210,00
print.printer_PDF24_PDF.print_plex_name:
print.printer_PDF24_PDF.print_resolution: 600
print.printer_PDF24_PDF.print_resolution_name:
print.printer_PDF24_PDF.print_reversed: false
print.printer_PDF24_PDF.print_scaling: 0,81
print.printer_PDF24_PDF.print_shrink_to_fit: false
print.printer_PDF24_PDF.print_to_file: false
print.printer_PDF24_PDF.print_unwriteable_margin_bottom: 0
print.printer_PDF24_PDF.print_unwriteable_margin_left: 0
print.printer_PDF24_PDF.print_unwriteable_margin_right: 0
print.printer_PDF24_PDF.print_unwriteable_margin_top: 0
print.printer_PDFCreator.print_bgcolor: false
print.printer_PDFCreator.print_bgimages: false
print.printer_PDFCreator.print_colorspace:
print.printer_PDFCreator.print_command:
print.printer_PDFCreator.print_downloadfonts: false
print.printer_PDFCreator.print_duplex: 1515870810
print.printer_PDFCreator.print_edge_bottom: 0
print.printer_PDFCreator.print_edge_left: 0
print.printer_PDFCreator.print_edge_right: 0
print.printer_PDFCreator.print_edge_top: 0
print.printer_PDFCreator.print_evenpages: true
print.printer_PDFCreator.print_footercenter:
print.printer_PDFCreator.print_footerleft: &PT
print.printer_PDFCreator.print_footerright: &D
print.printer_PDFCreator.print_headercenter:
print.printer_PDFCreator.print_headerleft: &T
print.printer_PDFCreator.print_headerright: &U
print.printer_PDFCreator.print_in_color: true
print.printer_PDFCreator.print_margin_bottom: 0.5
print.printer_PDFCreator.print_margin_left: 0.5
print.printer_PDFCreator.print_margin_right: 0.5
print.printer_PDFCreator.print_margin_top: 0.5
print.printer_PDFCreator.print_oddpages: true
print.printer_PDFCreator.print_orientation: 0
print.printer_PDFCreator.print_page_delay: 50
print.printer_PDFCreator.print_paper_data: 9
print.printer_PDFCreator.print_paper_height: 11,00
print.printer_PDFCreator.print_paper_name:
print.printer_PDFCreator.print_paper_size_type: 0
print.printer_PDFCreator.print_paper_size_unit: 1
print.printer_PDFCreator.print_paper_width: 8,50
print.printer_PDFCreator.print_plex_name:
print.printer_PDFCreator.print_resolution: 1515870810
print.printer_PDFCreator.print_resolution_name:
print.printer_PDFCreator.print_reversed: false
print.printer_PDFCreator.print_scaling: 1,00
print.printer_PDFCreator.print_shrink_to_fit: false
print.printer_PDFCreator.print_to_file: false
print.printer_PDFCreator.print_unwriteable_margin_bottom: 0
print.printer_PDFCreator.print_unwriteable_margin_left: 0
print.printer_PDFCreator.print_unwriteable_margin_right: 0
print.printer_PDFCreator.print_unwriteable_margin_top: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_bgcolor: false
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_bgimages: false
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_duplex: -437918235
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_edge_bottom: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_edge_left: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_edge_right: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_edge_top: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_evenpages: true
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_footercenter:
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_footerleft: &PT
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_footerright: &D
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_headercenter:
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_headerleft: &T
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_headerright: &U
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_in_color: true
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_margin_bottom: 0.5
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_margin_left: 0.5
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_margin_right: 0.196527779102325
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_margin_top: 0.5
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_oddpages: true
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_orientation: 1
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_page_delay: 50
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_paper_data: 9
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_paper_height: 297,00
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_paper_name:
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_paper_size_unit: 1
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_paper_width: 210,00
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_resolution: 600
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_reversed: false
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_scaling: 0,81
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_shrink_to_fit: false
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_to_file: false
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_unwriteable_margin_bottom: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_unwriteable_margin_left: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_unwriteable_margin_right: 0
print.printer_Samsung_M262x_282x_Series_(USB001)_(0).print_unwriteable_margin_top: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_bgcolor: false
print.printer_Samsung_M262x_282x_Series_(USB001).print_bgimages: false
print.printer_Samsung_M262x_282x_Series_(USB001).print_duplex: -437918235
print.printer_Samsung_M262x_282x_Series_(USB001).print_edge_bottom: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_edge_left: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_edge_right: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_edge_top: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_evenpages: true
print.printer_Samsung_M262x_282x_Series_(USB001).print_footercenter:
print.printer_Samsung_M262x_282x_Series_(USB001).print_footerleft: &PT
print.printer_Samsung_M262x_282x_Series_(USB001).print_footerright: &D
print.printer_Samsung_M262x_282x_Series_(USB001).print_headercenter:
print.printer_Samsung_M262x_282x_Series_(USB001).print_headerleft: &T
print.printer_Samsung_M262x_282x_Series_(USB001).print_headerright: &U
print.printer_Samsung_M262x_282x_Series_(USB001).print_in_color: true
print.printer_Samsung_M262x_282x_Series_(USB001).print_margin_bottom: 0.5
print.printer_Samsung_M262x_282x_Series_(USB001).print_margin_left: 0.5
print.printer_Samsung_M262x_282x_Series_(USB001).print_margin_right: 0.196527779102325
print.printer_Samsung_M262x_282x_Series_(USB001).print_margin_top: 0.5
print.printer_Samsung_M262x_282x_Series_(USB001).print_oddpages: true
print.printer_Samsung_M262x_282x_Series_(USB001).print_orientation: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_page_delay: 50
print.printer_Samsung_M262x_282x_Series_(USB001).print_paper_data: 9
print.printer_Samsung_M262x_282x_Series_(USB001).print_paper_height: 297,00
print.printer_Samsung_M262x_282x_Series_(USB001).print_paper_name:
print.printer_Samsung_M262x_282x_Series_(USB001).print_paper_size_unit: 1
print.printer_Samsung_M262x_282x_Series_(USB001).print_paper_width: 210,00
print.printer_Samsung_M262x_282x_Series_(USB001).print_resolution: 600
print.printer_Samsung_M262x_282x_Series_(USB001).print_reversed: false
print.printer_Samsung_M262x_282x_Series_(USB001).print_scaling: 0,80
print.printer_Samsung_M262x_282x_Series_(USB001).print_shrink_to_fit: false
print.printer_Samsung_M262x_282x_Series_(USB001).print_to_file: false
print.printer_Samsung_M262x_282x_Series_(USB001).print_unwriteable_margin_bottom: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_unwriteable_margin_left: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_unwriteable_margin_right: 0
print.printer_Samsung_M262x_282x_Series_(USB001).print_unwriteable_margin_top: 0
print.printer_Samsung_M262x_282x_Series.print_bgcolor: false
print.printer_Samsung_M262x_282x_Series.print_bgimages: false
print.printer_Samsung_M262x_282x_Series.print_duplex: -437918235
print.printer_Samsung_M262x_282x_Series.print_edge_bottom: 0
print.printer_Samsung_M262x_282x_Series.print_edge_left: 0
print.printer_Samsung_M262x_282x_Series.print_edge_right: 0
print.printer_Samsung_M262x_282x_Series.print_edge_top: 0
print.printer_Samsung_M262x_282x_Series.print_evenpages: true
print.printer_Samsung_M262x_282x_Series.print_footercenter:
print.printer_Samsung_M262x_282x_Series.print_footerleft: &PT
print.printer_Samsung_M262x_282x_Series.print_footerright: &D
print.printer_Samsung_M262x_282x_Series.print_headercenter:
print.printer_Samsung_M262x_282x_Series.print_headerleft: &T
print.printer_Samsung_M262x_282x_Series.print_headerright: &U
print.printer_Samsung_M262x_282x_Series.print_in_color: true
print.printer_Samsung_M262x_282x_Series.print_margin_bottom: 0.5
print.printer_Samsung_M262x_282x_Series.print_margin_left: 0.5
print.printer_Samsung_M262x_282x_Series.print_margin_right: 0.196527779102325
print.printer_Samsung_M262x_282x_Series.print_margin_top: 0.5
print.printer_Samsung_M262x_282x_Series.print_oddpages: true
print.printer_Samsung_M262x_282x_Series.print_orientation: 1
print.printer_Samsung_M262x_282x_Series.print_page_delay: 50
print.printer_Samsung_M262x_282x_Series.print_paper_data: 9
print.printer_Samsung_M262x_282x_Series.print_paper_height: 297,00
print.printer_Samsung_M262x_282x_Series.print_paper_name:
print.printer_Samsung_M262x_282x_Series.print_paper_size_type: 0
print.printer_Samsung_M262x_282x_Series.print_paper_size_unit: 1
print.printer_Samsung_M262x_282x_Series.print_paper_width: 210,00
print.printer_Samsung_M262x_282x_Series.print_resolution: 600
print.printer_Samsung_M262x_282x_Series.print_reversed: false
print.printer_Samsung_M262x_282x_Series.print_scaling: 0,80
print.printer_Samsung_M262x_282x_Series.print_shrink_to_fit: false
print.printer_Samsung_M262x_282x_Series.print_to_file: false
print.printer_Samsung_M262x_282x_Series.print_unwriteable_margin_bottom: 0
print.printer_Samsung_M262x_282x_Series.print_unwriteable_margin_left: 0
print.printer_Samsung_M262x_282x_Series.print_unwriteable_margin_right: 0
print.printer_Samsung_M262x_282x_Series.print_unwriteable_margin_top: 0
privacy.cpd.cache: false
privacy.cpd.cookies: false
privacy.cpd.extensions-tabmix: false
privacy.cpd.formdata: false
privacy.cpd.sessions: false
privacy.history.custom: true
privacy.sanitize.migrateClearSavedPwdsOnExit: true
privacy.sanitize.migrateFx3Prefs: true
privacy.sanitize.timeSpan: 4
security.disable_button.openCertManager: false
security.disable_button.openDeviceManager: false
security.mixed_content.block_active_content: false
security.sandbox.content.tempDirSuffix: {adfb39b0-f51b-46cd-9420-14480f90d6df}
security.ssl.errorReporting.automatic: true
services.sync.declinedEngines:
services.sync.engine.adblockplus: true
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1503334987
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Wichtige nicht veränderbare Einstellungen
-----------------------------------------

Chronik- und Lesezeichendatenbank
---------------------------------

JavaScript
----------

Inkrementelle GC: true

Barrierefreiheit
----------------

Aktiviert: false
Barrierefreiheit verhindern: 0

Bibliotheken-Versionen
----------------------

NSPR
Minimal vorausgesetzte Version: 4.15
Verwendete Version: 4.15

NSS
Minimal vorausgesetzte Version: 3.31.1
Verwendete Version: 3.31.1

NSSSMIME
Minimal vorausgesetzte Version: 3.31.1
Verwendete Version: 3.31.1

NSSSSL
Minimal vorausgesetzte Version: 3.31.1
Verwendete Version: 3.31.1

NSSUTIL
Minimal vorausgesetzte Version: 3.31.1
Verwendete Version: 3.31.1

Experimentelle Funktionen
-------------------------

Isolierte Umgebungen
--------------------

Ebene der isolierten Umgebung des Inhaltsprozesses: 1
Effektive Ebene der isolierten Umgebung: 1

============

And a malwarebytes report:

# AdwCleaner 7.0.1.0 - Logfile created on Tue Aug 29 16:30:51 2017
# Updated on 2017/05/08 by Malwarebytes 
# Database: 08-25-2017.1
# Running on Windows 10 Home (X64)
# Mode: scan
# Support: https://www.malwarebytes.com/support

***** [ Services ] *****

No malicious services found.

***** [ Folders ] *****

PUP.Optional.Legacy, C:\Users\PC\AppData\Roaming\Wise Euask
PUP.Optional.AuslogicsDriverUpdater, C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Auslogics
PUP.Optional.AuslogicsDriverUpdater, C:\ProgramData\Auslogics
PUP.Optional.AuslogicsDriverUpdater, C:\Users\All Users\Auslogics


***** [ Files ] *****

PUP.Optional.AuslogicsDiskDefrag, C:\Users\PC\Desktop\Auslogics Disk Defrag.lnk


***** [ DLL ] *****

No malicious DLLs found.

***** [ WMI ] *****

No malicious WMI found.

***** [ Shortcuts ] *****

No malicious shortcuts found.

***** [ Tasks ] *****

PUP.Optional.Legacy, WiseCleaner\WRCSkipUAC
PUP.Optional.Legacy, WiseCleaner


***** [ Registry ] *****

PUP.Optional.Legacy, [Key] - HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{DF6A13C0-77DF-41FE-BD05-6D5201EB0CE7}_is1
PUP.Optional.Legacy, [Value] - HKLM\SOFTWARE\MICROSOFT\INTERNET EXPLORER\MAIN\FEATURECONTROL\FEATURE_BROWSER_EMULATION | WISEREGCLEANER.EXE
PUP.Optional.TenorShare, [Key] - HKLM\SOFTWARE\WISECLEANER
PUP.Optional.VLCUpdaterDE, [Value] - HKU\S-1-5-21-164096146-2058489042-2202901907-1001\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run | VLC Updater
PUP.Optional.WiseFolderLock, [Key] - HKLM\SOFTWARE\Classes\CLSID\{D4EF86C3-77D7-4F82-BBB8-6DFFAB6E2D32}
PUP.Optional.AuslogicsDriverUpdater, [Key] - HKLM\SOFTWARE\Auslogics


***** [ Firefox (and derivatives) ] *****

No malicious Firefox entries.

***** [ Chromium (and derivatives) ] *****

No malicious Chromium entries.

*************************



########## EOF - C:\AdwCleaner\AdwCleaner[S0].txt ##########
Flags: needinfo?(cadeyrn)
I have the very same issue. I modified UBO xpi package a bit so it became unsigned, then clicked "подробная информация" (russian variant), that click sends "unsigned-addons" value in adress bar which opens http://ww2.www.unsigned-addons.com/ or other sites like this, which then redirects to any advrtesing sites with dubious content. What is it  - do i catched virus and i am gonna die or is it just developers joke ?
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