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Firfox for the past month has been real slow and I've reinstalled it to default but that hasn't helped, safe mode woks fine

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  • Last reply by FredMcD

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About a month ago, Firefox started taking about twice as long to load pages, but Microsoft Edge is working fine, so it isn't my internet connection or modem. I uninstalled Firefox and cleaned out the registry with CC Cleaner and reinstalled Firefox without any themes or add ons and refreshed it. It is still slow. Then I started Firefox in safe mode and it worked great. Then I restarted Firefox and I made sure all of the settings were exactly the same as in safe mode, again with no themes or add ons and it is still very slow.

About a month ago, Firefox started taking about twice as long to load pages, but Microsoft Edge is working fine, so it isn't my internet connection or modem. I uninstalled Firefox and cleaned out the registry with CC Cleaner and reinstalled Firefox without any themes or add ons and refreshed it. It is still slow. Then I started Firefox in safe mode and it worked great. Then I restarted Firefox and I made sure all of the settings were exactly the same as in safe mode, again with no themes or add ons and it is still very slow.

Chosen solution

Microsoft just did an update and now Firefox is working properly. My problems with Firefox have been going on for the past month which was probably caused by the update a month ago, so the problem wasn't with Firefox, but with the previous Windows update.

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It could be the work of one of your add-ons, or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control> (Mac=<Command>) <Shift> A)

In the Add-ons Manager, on the left, select Extensions. Disable a few add-ons, then Restart Firefox.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All Of them.

If the problem continues, disable some more (restarting FF). Continue until the problem is gone. After, you know what group is causing the issue. Re-enable the last group ONE AT A TIME (restarting FF) until the problem returns.

Once you think you found the problem, disable that and re-enable all the others, then restart again. Let us know who the suspect is, detective.

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Again, I have no themes or add ons. I redownloaded and refreshed Firefox so it is set to all default settings with no add ons or themes. I made sure all of the settings were exactly like in safe mode which works perfectly, so I would think there should be no difference between my copy of Firefox and safemode which really puzzles me.

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What about Hardware Acceleration?

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I turned off hardware acceleration

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Name 	Firefox
Version 	68.0.2
Build ID 	20190813150448
Update History 	
Update Channel 	release
User Agent 	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0
OS 	Windows_NT 10.0
Profile Folder 	
C:\Users\Paul Boe\AppData\Roaming\Mozilla\Firefox\Profiles\imzqkq6b.default-1565824087271
Enabled Plugins 	about:plugins
Build Configuration 	about:buildconfig
Memory Use 	about:memory
Performance 	about:performance
Registered Service Workers 	about:serviceworkers
Launcher Process 	Enabled
Multiprocess Windows 	1/1 Enabled by default
Remote Processes 	5
Enterprise Policies 	Active
Google Location Service Key 	Found
Google Safebrowsing Key 	Found
Mozilla Location Service Key 	Found
Safe Mode 	false
Profiles 	about:profiles
Crash Reports for the Last 3 Days
Report ID 	Submitted

All Crash Reports
Firefox Features
Name 	Version 	ID
Firefox Monitor	3.0	fxmonitor@mozilla.org
Firefox Screenshots	39.0.0	screenshots@mozilla.org
Form Autofill	1.0	formautofill@mozilla.org
Web Compat	5.0.2	webcompat@mozilla.org
WebCompat Reporter	1.1.0	webcompat-reporter@mozilla.org
Remote Processes
Type 	Count
Web Content	3 / 8
Extension	1
GPU	1
Extensions
Name 	Version 	Enabled 	ID
Amazon.com	1.1	true	amazondotcom@search.mozilla.org
Bing	1.0	true	bing@search.mozilla.org
DuckDuckGo	1.0	true	ddg@search.mozilla.org
eBay	1.0	true	ebay@search.mozilla.org
Google	1.0	true	google@search.mozilla.org
Twitter	1.0	true	twitter@search.mozilla.org
Wikipedia (en)	1.0	true	wikipedia@search.mozilla.org
Security Software
Type 	Name
Antivirus 	Avast Antivirus
Antispyware 	Avast Antivirus
Firewall 	ZoneAlarm Free Firewall Firewall
Graphics
Features
Compositing	Basic
Asynchronous Pan/Zoom	wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled
WebGL 1 Driver WSI Info	EGL_VENDOR: Google Inc. (adapter LUID: 000000000000bc5d)
EGL_VERSION: 1.4 (ANGLE 2.1.0.8a050090f926)
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_ANDROID_blob_cache EGL_ANDROID_recordable 
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WebGL 1 Extensions	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_bptc 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
WebGL 2 Driver WSI Info	EGL_VENDOR: Google Inc. (adapter LUID: 000000000000bc5d)
EGL_VERSION: 1.4 (ANGLE 2.1.0.8a050090f926)
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_ANDROID_blob_cache EGL_ANDROID_recordable 
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WebGL 2 Driver Renderer	Google Inc. -- ANGLE (Intel(R) HD Graphics 620 Direct3D11 vs_5_0 ps_5_0)
WebGL 2 Driver Version	OpenGL ES 3.0 (ANGLE 2.1.0.8a050090f926)
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Modified by cor-el

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Chosen Solution

Microsoft just did an update and now Firefox is working properly. My problems with Firefox have been going on for the past month which was probably caused by the update a month ago, so the problem wasn't with Firefox, but with the previous Windows update.

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That's good to hear. Well done. Please flag your last post as Solved Problem as this could help others with similar problems.