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

Support Forum

fonts displaying as 'A' in a box

Posted

On lots of websites text appear as an 'A' in a box (see screenshot - i've blurred some content due to privacy). I've gone through my preferences and checked 'Allow pages to choose their own fonts, instead of your selections above'. When I uncheck this box using my font selections things display fine however when I check it I get this problem. I'm a web developer so I can't override site fonts, I need them to display as intended. I've checked Chrome and Safari on my machine and they are fine so this problem is isolated to FireFox. I've tried restarting FF in safe mode but it made no difference, I went to the config page and changed network and gfx references back to 'reset' and again it doesn't make a difference.

System details: FF = 56.0 (64 bit) OSX = 10.9.5

On lots of websites text appear as an 'A' in a box (see screenshot - i've blurred some content due to privacy). I've gone through my preferences and checked 'Allow pages to choose their own fonts, instead of your selections above'. When I uncheck this box using my font selections things display fine however when I check it I get this problem. I'm a web developer so I can't override site fonts, I need them to display as intended. I've checked Chrome and Safari on my machine and they are fine so this problem is isolated to FireFox. I've tried restarting FF in safe mode but it made no difference, I went to the config page and changed network and gfx references back to 'reset' and again it doesn't make a difference. System details: FF = 56.0 (64 bit) OSX = 10.9.5
Attached screenshots

Modified by sanch3z

Additional System Details

Installed Plug-ins

  • Shockwave Flash 27.0 r0

Application

  • Firefox 56.0
  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:56.0) Gecko/20100101 Firefox/56.0
  • Support URL: https://support.mozilla.org/1/firefox/56.0/Darwin/en-GB/

Extensions

  • Firebug 2.0.19 (firebug@software.joehewitt.com)
  • Adobe Acrobat - Create PDF 1.1 (web2pdfextension@web2pdf.adobedotcom) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription:
  • adapterDeviceID: 0x0fea
  • adapterDrivers:
  • adapterRAM:
  • adapterVendorID: 0x10de
  • crashGuards: []
  • driverDate:
  • driverVersion:
  • featureLog: {u'fallbacks': [], u'features': [{u'status': u'available', u'log': [{u'status': u'available', u'type': u'default'}], u'description': u'Compositing', u'name': u'HW_COMPOSITING'}, {u'status': u'available', u'log': [{u'status': u'available', u'type': u'default'}], u'description': u'OpenGL Compositing', u'name': u'OPENGL_COMPOSITING'}, {u'status': u'unavailable', 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'description': u'WebRender', u'name': u'WEBRENDER'}]}
  • info: {u'TileHeight': 1024, u'TileWidth': 1024, u'ApzDragInput': 1, u'AzureFallbackCanvasBackend': u'none', u'ApzWheelInput': 1, u'AzureCanvasAccelerated': 1, u'AzureCanvasBackend': u'skia', u'AzureContentBackend': u'skia'}
  • numAcceleratedWindows: 2
  • numTotalWindows: 2
  • webgl1DriverExtensions: GL_ARB_color_buffer_float GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_draw_buffers GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_instanced_arrays GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_provoking_vertex GL_ARB_seamless_cube_map GL_ARB_shader_objects GL_ARB_shader_texture_lod GL_ARB_shading_language_100 GL_ARB_shadow GL_ARB_sync GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_float GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_transpose_matrix GL_ARB_vertex_array_bgra GL_ARB_vertex_blend GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_clip_volume_hint GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_depth_bounds_test GL_EXT_draw_buffers2 GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture_array GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_s3tc GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_rectangle GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_EXT_transform_feedback GL_EXT_vertex_array_bgra GL_APPLE_aux_depth_stencil GL_APPLE_client_storage GL_APPLE_element_array GL_APPLE_fence GL_APPLE_float_pixels GL_APPLE_flush_buffer_range GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_packed_pixels GL_APPLE_pixel_buffer GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_specular_vector GL_APPLE_texture_range GL_APPLE_transform_hint GL_APPLE_vertex_array_object GL_APPLE_vertex_array_range GL_APPLE_vertex_point_size GL_APPLE_vertex_program_evaluators GL_APPLE_ycbcr_422 GL_ATI_separate_stencil GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_ATI_texture_mirror_once GL_IBM_rasterpos_clip GL_NV_blend_square GL_NV_conditional_render GL_NV_depth_clamp GL_NV_fog_distance GL_NV_fragment_program_option GL_NV_fragment_program2 GL_NV_light_max_exponent GL_NV_multisample_filter_hint GL_NV_point_sprite GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_SGIS_generate_mipmap GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod
  • 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 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_compressed_texture_s3tc_srgb 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
  • webgl1Renderer: NVIDIA Corporation -- NVIDIA GeForce GT 755M OpenGL Engine
  • webgl1Version: 2.1 NVIDIA-8.26.29 310.40.55f01
  • 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_depth_bounds_test GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_mirror_clamp 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 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
  • webgl2Renderer: NVIDIA Corporation -- NVIDIA GeForce GT 755M OpenGL Engine
  • webgl2Version: 4.1 NVIDIA-8.26.29 310.40.55f01
  • webgl2WSIInfo: CGL
  • windowLayerManagerRemote: True
  • windowLayerManagerType: OpenGL
  • windowUsingAdvancedLayers: False

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
cor-el
  • Top 10 Contributor
  • Moderator
16163 solutions 145864 answers

Helpful Reply

You can right-click and select "Inspect Element" to open the builtin Inspector with this element selected. You can check the font used for selected text in the Font tab in the right pane of the Inspector.

We have seen cases where a box with all '?' or all 'A' is displayed that might be related to using a Last Resort font that displays all the glyphs with one same character.

You can also try to set this pref to 1 on the about:config page in case there is a problem with the security settings. security.sandbox.content.level = 1

You can right-click and select "Inspect Element" to open the builtin Inspector with this element selected. You can check the font used for selected text in the <b>Font</b> tab in the right pane of the Inspector. *https://developer.mozilla.org/en/Tools/Page_Inspector/How_to/View_fonts We have seen cases where a box with all '?' or all 'A' is displayed that might be related to using a Last Resort font that displays all the glyphs with one same character. You can also try to set this pref to 1 on the <b>about:config</b> page in case there is a problem with the security settings. security.sandbox.content.level = 1 *[[/questions/1178053]] Firefox not displaying fonts correctly *[[/questions/1178215]] ALL text showed on my screen are [A]

Question owner

You are correct, 'Last resort' is the font detailed in the inspector. I changed the sandbox level to '1' as suggested, restarted FireFox and it has fixed the issue.

I'm slightly nervous about messing around with security settings. Will changing it from '3' to '1' have a negative impact?

Thanks for the help

You are correct, 'Last resort' is the font detailed in the inspector. I changed the sandbox level to '1' as suggested, restarted FireFox and it has fixed the issue. I'm slightly nervous about messing around with security settings. Will changing it from '3' to '1' have a negative impact? Thanks for the help
cor-el
  • Top 10 Contributor
  • Moderator
16163 solutions 145864 answers

Helpful Reply

See the comment here:

#if defined(XP_MACOSX) && defined(MOZ_SANDBOX) && defined(MOZ_CONTENT_SANDBOX)
// This pref is discussed in bug 1083344, the naming is inspired from its
// Windows counterpart, but on Mac it's an integer which means:
// 0 -> "no sandbox" (nightly only)
// 1 -> "preliminary content sandboxing enabled: write access to
//       home directory is prevented"
// 2 -> "preliminary content sandboxing enabled with profile protection:
//       write access to home directory is prevented, read and write access
//       to ~/Library and profile directories are prevented (excluding
//       $PROFILE/{extensions,chrome})"
// 3 -> "no global read/write access, read access permitted to
//       $PROFILE/{extensions,chrome}"
// This setting is read when the content process is started. On Mac the content
// process is killed when all windows are closed, so a change will take effect
// when the 1st window is opened.
pref("security.sandbox.content.level", 3);
#endif
See the comment here: *https://dxr.mozilla.org/mozilla-release/source/browser/app/profile/firefox.js#1075 <pre>#if defined(XP_MACOSX) && defined(MOZ_SANDBOX) && defined(MOZ_CONTENT_SANDBOX) // This pref is discussed in bug 1083344, the naming is inspired from its // Windows counterpart, but on Mac it's an integer which means: // 0 -> "no sandbox" (nightly only) // 1 -> "preliminary content sandboxing enabled: write access to // home directory is prevented" // 2 -> "preliminary content sandboxing enabled with profile protection: // write access to home directory is prevented, read and write access // to ~/Library and profile directories are prevented (excluding // $PROFILE/{extensions,chrome})" // 3 -> "no global read/write access, read access permitted to // $PROFILE/{extensions,chrome}" // This setting is read when the content process is started. On Mac the content // process is killed when all windows are closed, so a change will take effect // when the 1st window is opened. pref("security.sandbox.content.level", 3); #endif</pre>