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How to handle text on websites looking like little boxes wih an "A" in each?

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After running Firefox for a time - 1 to 3 days - every character in the regular text on very website is replaced by a small box with an "A" in it. I am on Mac 10.9.5. Restarting Firefox doesn't help. The only thing that helps is my normal maintenance: Repair permissions in Disk Utility, restart in Safe Boot mode, wait for the hard disk to settle down, restart regularly. Firefox didn't always do this. Now it does it all the time.

After running Firefox for a time - 1 to 3 days - every character in the regular text on very website is replaced by a small box with an "A" in it. I am on Mac 10.9.5. Restarting Firefox doesn't help. The only thing that helps is my normal maintenance: Repair permissions in Disk Utility, restart in Safe Boot mode, wait for the hard disk to settle down, restart regularly. Firefox didn't always do this. Now it does it all the time.
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Chi tiết hệ thống bổ sung

Phần bổ trợ đã cài đặt

  • Shockwave Flash 21.0 r0

Ứng dụng

  • Firefox 67.0
  • Chuỗi đại diện người dùng: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:67.0) Gecko/20100101 Firefox/67.0
  • URL hỗ trợ: https://support.mozilla.org/1/firefox/67.0/Darwin/en-US/

Tiện ích mở rộng

  • News 100.55 (web@News)

Javascript

  • incrementalGCEnabled: True

Đồ họa

  • adapterDescription:
  • adapterDeviceID: 0x0166
  • adapterDrivers:
  • adapterRAM:
  • adapterVendorID: 0x8086
  • contentUsesTiling: True
  • crashGuards: []
  • driverDate:
  • driverVersion:
  • failures: [u'CP+[GFX1-]: Managed to allocate after flush.']
  • 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'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'blocked', u'description': u'WebRender qualified', u'log': [{u'status': u'available', u'type': u'default'}, {u'status': u'blocked', u'message': u'No qualified hardware', u'type': u'env'}], u'name': u'WEBRENDER_QUALIFIED'}, {u'status': u'blocked', u'description': u'Off Main Thread Painting', u'log': [{u'status': u'available', u'type': u'default'}, {u'status': u'blocked', u'message': u'OMTP blocked before OSX 10.10', u'type': u'runtime'}], u'name': u'OMTP'}]}
  • indices: [0]
  • info: {u'TileHeight': 512, u'ApzWheelInput': 1, u'ApzDragInput': 1, u'ApzKeyboardInput': 1, u'ApzAutoscrollInput': 1, u'AzureFallbackCanvasBackend': u'none', u'TileWidth': 512, u'AzureCanvasBackend': u'skia', u'AzureContentBackend': u'skia'}
  • lowEndMachine: False
  • numAcceleratedWindows: 2
  • numTotalWindows: 2
  • offMainThreadPaintEnabled: False
  • offMainThreadPaintWorkerCount: 0
  • targetFrameRate: 60
  • 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_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_disjoint_timer_query EXT_float_blend EXT_frag_depth EXT_shader_texture_lod EXT_sRGB EXT_texture_compression_rgtc EXT_texture_filter_anisotropic 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-8.28.37
  • 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_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_disjoint_timer_query EXT_float_blend EXT_texture_compression_rgtc EXT_texture_filter_anisotropic 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-8.28.37
  • webgl2WSIInfo: CGL
  • windowLayerManagerRemote: True
  • windowLayerManagerType: OpenGL
  • windowUsingAdvancedLayers: False

Thay đổi cài đặt

Linh tinh

  • Người dùng JS: Không
  • Có thể tiếp cận: Không
cor-el
  • Top 10 Contributor
  • Moderator
17278 giải pháp 156200 câu trả lời
Được đăng

This is a problem with fonts installed in a location that Firefox doesn't allow and is causing Firefox to fallback to another last resort font.

You can check for sandbox security issues when Firefox has a problem to access fonts installed locally.

You can set this pref to 2 or 1 on the about:config page to reduce the sandbox security level.

  • security.sandbox.content.level = 1
  • close and restart Firefox to make the change effective.

If '1' still doesn't have effect then try '0' to disable the sandbox.

If this didn't work then undo/reverse the change and reset the pref via the right-click context menu to the default value.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

See also:

This is a problem with fonts installed in a location that Firefox doesn't allow and is causing Firefox to fallback to another last resort font. You can check for sandbox security issues when Firefox has a problem to access fonts installed locally. *https://wiki.mozilla.org/Security/Sandbox You can set this pref to 2 or 1 on the <b>about:config</b> page to reduce the sandbox security level. *security.sandbox.content.level = 1 *close and restart Firefox to make the change effective. If '1' still doesn't have effect then try '0' to disable the sandbox. If this didn't work then undo/reverse the change and reset the pref via the right-click context menu to the default value. You can open the <b>about:config</b> page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue. *http://kb.mozillazine.org/about:config See also: *https://wiki.mozilla.org/Security/Sandbox#Content_Levels
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