Bug 473212 - Dragging tabs from Wayland-using Firefox on to the Desktop doesn't work
Summary: Dragging tabs from Wayland-using Firefox on to the Desktop doesn't work
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (show other bugs)
Version: 5.27.6
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-08-09 14:17 UTC by DeKay
Modified: 2023-10-03 21:33 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed In:


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Description DeKay 2023-08-09 14:17:54 UTC
Similar to https://bugs.kde.org/show_bug.cgi?id=472158.  Creating this new bug at Nate's request.  This bug captures dragging tabs from Wayland-using Firefox not working at all.  That bug describes D&D of xwayland-firefox tabs onto the desktop being slow.  

STEPS TO REPRODUCE
1. From a terminal, enter "MOZ_ENABLE_WAYLAND=1 firefox"
2. Have multiple tabs open within one window in Firefox.
3. Drag one of the tabs onto the desktop so it separates that tab into its own window.

OBSERVED RESULT
The thumbnail image of the window immediately disappears once I release the mouse and the tab stays in its original window.  No new window is ever created.

EXPECTED RESULT
The dragged tab should open instantly in a new window at the drop location on the desktop.

SOFTWARE/OS VERSIONS
Linux version: 6.4.3-arch1-2 (Arch system up to date as of July 2023)
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.108.0
Qt Version: 5.15.10
Hardware: Ryzen 1700 GPU with AMD RX560 GPU and amdgpu driver
Mesa version: 23.1.3-2

ADDITIONAL INFORMATION

Here is some of the stuff I pulled out of "about:support" running with the wayland env variable set.

Application Basics
------------------

Name: Firefox
Version: 115.0.2
Build ID: 20230711154437
Distribution ID: archlinux
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0
OS: Linux 6.4.3-arch1-2 #1 SMP PREEMPT_DYNAMIC Sat, 15 Jul 2023 19:25:49 +0000
OS Theme: Adwaita / Adwaita
Multiprocess Windows: 1/1
Fission Windows: 1/1 Enabled by default
Remote Processes: 7
Enterprise Policies: Inactive
Google Location Service Key: Found
Google Safebrowsing Key: Found
Mozilla Location Service Key: Found
Safe Mode: false
Memory Size (RAM): 15.5 GB
Disk Space Available: 98.0 GB

Firefox Features
----------------

Name: Firefox Screenshots
Version: 39.0.1
ID: screenshots@mozilla.org

Name: Form Autofill
Version: 1.0.1
ID: formautofill@mozilla.org

Name: Picture-In-Picture
Version: 1.0.0
ID: pictureinpicture@mozilla.org

Name: Web Compatibility Interventions
Version: 115.0.0
ID: webcompat@mozilla.org

Name: WebCompat Reporter
Version: 1.5.1
ID: webcompat-reporter@mozilla.org

Remote Features
---------------

bug-1680034-rollout-shirley-feature-roll-out-81-to-83-release-81-83: active
bug-1693420-rollout-sponsored-top-sites-rollout-release-84-100: active
bug-1716693-rollout-doh-canada-rollout-release-91-94: active
bug-1766618-rollout-disable-websocket-over-http2-release-91-100: active
bug-1802286-rollout-fix-webcompat-shim-breakage-release-103-107: active
rollout-increasing-normandy-skew-out-changes-from-15-m-release-73-75-bug-1616898: active
rollout-monitor-v2-1505837: active
rollout-restart-manager-release-1481278: active

Remote Processes
----------------

Type: Preallocated
Count: 3

Type: Privileged About
Count: 1

Type: Extension
Count: 1

Type: Socket
Count: 1

Type: Isolated Web Content
Count: 1

Add-ons
-------

Name: Add-ons Search Detection
Type: extension
Version: 2.0.0
Enabled: true
ID: addons-search-detection@mozilla.com

Name: Amazon.co.uk
Type: extension
Version: 1.12
Enabled: true
ID: amazon@search.mozilla.org

Name: Anti-Paywall
Type: extension
Version: 0.9.2
Enabled: true
ID: {e5322648-dfe4-4c45-b02d-44c61d545f2b}

Name: Bing
Type: extension
Version: 1.5
Enabled: true
ID: bing@search.mozilla.org

Name: Bypass Paywalls Clean
Type: extension
Version: 3.0.1.0
Enabled: true
ID: {d133e097-46d9-4ecc-9903-fa6a722a6e0e}

Name: DownThemAll!
Type: extension
Version: 4.10.1
Enabled: true
ID: {DDC359D1-844A-42a7-9AA1-88A850A938A8}

Name: DuckDuckGo
Type: extension
Version: 1.4
Enabled: true
ID: ddg@search.mozilla.org

Name: eBay
Type: extension
Version: 1.4
Enabled: true
ID: ebay@search.mozilla.org

Name: Facebook Container
Type: extension
Version: 2.3.11
Enabled: true
ID: @contain-facebook

Name: FastForward
Type: extension
Version: 0.2039
Enabled: true
ID: addon@fastforward.team

Name: Google
Type: extension
Version: 1.4
Enabled: true
ID: google@search.mozilla.org

Name: Google Container
Type: extension
Version: 1.5.4
Enabled: true
ID: @contain-google

Name: Google search link fix
Type: extension
Version: 1.6.10
Enabled: true
ID: jid0-XWJxt5VvCXkKzQK99PhZqAn7Xbg@jetpack

Name: Google Unlocked
Type: extension
Version: 1.5
Enabled: true
ID: {48b826bb-6b28-48d1-8075-267a02d95a58}

Name: Kitspace 1-click BOM
Type: extension
Version: 1.8.8
Enabled: true
ID: 1clickBOM@monostable

Name: Print Edit WE
Type: extension
Version: 29.6
Enabled: true
ID: printedit-we@DW-dev

Name: Privacy Badger
Type: extension
Version: 2023.6.23
Enabled: true
ID: jid1-MnnxcxisBPnSXQ@jetpack

Name: Reddit Enhancement Suite
Type: extension
Version: 5.22.17
Enabled: true
ID: jid1-xUfzOsOFlzSOXg@jetpack

Name: uBlacklist
Type: extension
Version: 8.3.1
Enabled: true
ID: @ublacklist

Name: uBlock Origin
Type: extension
Version: 1.51.0
Enabled: true
ID: uBlock0@raymondhill.net

Name: User-Agent Switcher
Type: extension
Version: 1.4.18
Enabled: true
ID: user-agent-switcher@ninetailed.ninja

Name: Video DownloadHelper
Type: extension
Version: 8.0.0.0
Enabled: true
ID: {b9db16a4-6edc-47ec-a1f4-b86292ed211d}

Name: Wikipedia (en)
Type: extension
Version: 1.3
Enabled: true
ID: wikipedia@search.mozilla.org

Name: YesScript2
Type: extension
Version: 4.3
Enabled: true
ID: yesscript202@example.org

Name: YouTube Comment Search
Type: extension
Version: 2.4.0
Enabled: true
ID: {b271a84f-6f7c-4784-9b00-3c1b4faa2dce}

Name: Cisco Webex Extension
Type: extension
Version: 1.20.2
Enabled: false
ID: ciscowebexstart1@cisco.com

Name: EPUBReader
Type: extension
Version: 2.0.13
Enabled: false
ID: {5384767E-00D9-40E9-B72F-9CC39D655D6F}

Name: Save Page WE
Type: extension
Version: 28.11
Enabled: false
ID: savepage-we@DW-dev

Name: Youtube Audio
Type: extension
Version: 0.0.2.5
Enabled: false
ID: {580efa7d-66f9-474d-857a-8e2afc6b1181}

Graphics
--------

Features
Window Device Pixel Ratios: 1
Compositing: WebRender
Asynchronous Pan/Zoom: wheel input enabled; touch input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled; smooth pinch-zoom enabled
WebGL 1 Driver WSI Info: EGL_VENDOR: Mesa Project EGL_VERSION: 1.5 EGL_EXTENSIONS: EGL_ANDROID_blob_cache EGL_ANDROID_native_fence_sync EGL_EXT_buffer_age EGL_EXT_create_context_robustness EGL_EXT_image_dma_buf_import EGL_EXT_image_dma_buf_import_modifiers EGL_EXT_present_opaque EGL_EXT_swap_buffers_with_damage EGL_IMG_context_priority EGL_KHR_cl_event2 EGL_KHR_config_attribs EGL_KHR_context_flush_control EGL_KHR_create_context EGL_KHR_create_context_no_error EGL_KHR_fence_sync EGL_KHR_get_all_proc_addresses EGL_KHR_gl_colorspace EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_3D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_image_base EGL_KHR_no_config_context EGL_KHR_reusable_sync EGL_KHR_surfaceless_context EGL_KHR_swap_buffers_with_damage EGL_EXT_pixel_format_float EGL_KHR_wait_sync EGL_MESA_configless_context EGL_MESA_drm_image EGL_MESA_image_dma_buf_export EGL_MESA_query_driver EGL_WL_bind_wayland_display EGL_WL_create_wayland_buffer_from_image EGL_EXTENSIONS(nullptr): EGL_EXT_device_base EGL_EXT_device_enumeration EGL_EXT_device_query EGL_EXT_platform_base EGL_KHR_client_get_all_proc_addresses EGL_EXT_client_extensions EGL_KHR_debug EGL_EXT_platform_device EGL_EXT_platform_wayland EGL_KHR_platform_wayland EGL_EXT_platform_x11 EGL_KHR_platform_x11 EGL_EXT_platform_xcb EGL_MESA_platform_gbm EGL_KHR_platform_gbm EGL_MESA_platform_surfaceless IsWebglOutOfProcessEnabled: 1
WebGL 1 Driver Renderer: AMD -- AMD Radeon RX 560 Series (polaris11, LLVM 15.0.7, DRM 3.52, 6.4.3-arch1-2)
WebGL 1 Driver Version: 4.6 (Compatibility Profile) Mesa 23.1.3
WebGL 1 Driver Extensions: GL_ARB_multisample GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_copy_texture GL_EXT_subtexture GL_EXT_texture_object GL_EXT_vertex_array GL_EXT_compiled_vertex_array GL_EXT_texture GL_EXT_texture3D GL_IBM_rasterpos_clip GL_ARB_point_parameters GL_EXT_draw_range_elements GL_EXT_packed_pixels GL_EXT_point_parameters GL_EXT_rescale_normal GL_EXT_separate_specular_color GL_EXT_texture_edge_clamp GL_SGIS_generate_mipmap GL_SGIS_texture_border_clamp GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_ARB_framebuffer_sRGB GL_ARB_multitexture GL_EXT_framebuffer_sRGB GL_IBM_multimode_draw_arrays GL_IBM_texture_mirrored_repeat GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_transpose_matrix GL_EXT_blend_func_separate GL_EXT_fog_coord GL_EXT_multi_draw_arrays GL_EXT_secondary_color GL_EXT_texture_env_add GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod_bias GL_INGR_blend_func_separate GL_NV_blend_square GL_NV_light_max_exponent GL_NV_texgen_reflection GL_NV_texture_env_combine4 GL_S3_s3tc GL_SUN_multi_draw_arrays GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_EXT_framebuffer_object GL_EXT_texture_compression_s3tc GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_MESA_window_pos GL_NV_packed_depth_stencil GL_NV_texture_rectangle GL_ARB_depth_texture GL_ARB_occlusion_query GL_ARB_shadow GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_window_pos GL_ATI_fragment_shader GL_EXT_stencil_two_side GL_EXT_texture_cube_map GL_NV_copy_depth_to_color GL_NV_depth_clamp GL_NV_fog_distance GL_NV_half_float GL_APPLE_packed_pixels GL_ARB_draw_buffers GL_ARB_fragment_program GL_ARB_fragment_shader GL_ARB_shader_objects GL_ARB_vertex_program GL_ARB_vertex_shader GL_ATI_draw_buffers GL_ATI_texture_env_combine3 GL_ATI_texture_float GL_EXT_depth_bounds_test GL_EXT_shadow_funcs GL_EXT_stencil_wrap GL_MESA_pack_invert GL_NV_primitive_restart GL_ARB_depth_clamp GL_ARB_fragment_program_shadow GL_ARB_half_float_pixel GL_ARB_occlusion_query2 GL_ARB_point_sprite GL_ARB_shading_language_100 GL_ARB_sync GL_ARB_texture_non_power_of_two GL_ARB_vertex_buffer_object GL_ATI_blend_equation_separate GL_EXT_blend_equation_separate GL_OES_read_format GL_ARB_color_buffer_float GL_ARB_pixel_buffer_object GL_ARB_texture_compression_rgtc GL_ARB_texture_float GL_ARB_texture_rectangle GL_ATI_texture_compression_3dc GL_EXT_packed_float GL_EXT_pixel_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_mirror_clamp GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_shared_exponent GL_ARB_framebuffer_object GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_packed_depth_stencil GL_ARB_vertex_array_object GL_ATI_separate_stencil GL_ATI_texture_mirror_once GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_texture_array GL_EXT_texture_compression_latc GL_EXT_texture_integer GL_EXT_texture_sRGB_decode GL_EXT_timer_query GL_OES_EGL_image GL_AMD_performance_monitor GL_EXT_texture_buffer_object GL_AMD_texture_texture4 GL_ARB_copy_buffer GL_ARB_depth_buffer_float GL_ARB_draw_instanced GL_ARB_half_float_vertex GL_ARB_instanced_arrays GL_ARB_map_buffer_range GL_ARB_texture_buffer_object GL_ARB_texture_rg GL_ARB_texture_swizzle GL_ARB_vertex_array_bgra GL_EXT_texture_swizzle GL_EXT_vertex_array_bgra GL_NV_conditional_render GL_AMD_conservative_depth GL_AMD_depth_clamp_separate GL_AMD_draw_buffers_blend GL_AMD_seamless_cubemap_per_texture GL_AMD_shader_stencil_export GL_ARB_ES2_compatibility GL_ARB_blend_func_extended GL_ARB_compatibility GL_ARB_debug_output GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_explicit_attrib_location GL_ARB_fragment_coord_conventions GL_ARB_provoking_vertex GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_shader_stencil_export GL_ARB_shader_texture_lod GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_multisample GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_uniform_buffer_object GL_ARB_vertex_type_2_10_10_10_rev GL_ATI_meminfo GL_EXT_provoking_vertex GL_EXT_texture_snorm GL_MESA_texture_signed_rgba GL_NV_copy_image GL_NV_texture_barrier GL_ARB_draw_indirect GL_ARB_get_program_binary GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_robustness GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_precision GL_ARB_shader_subroutine GL_ARB_texture_compression_bptc GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_viewport_array GL_EXT_direct_state_access GL_EXT_shader_image_load_store GL_EXT_vertex_attrib_64bit GL_NV_vdpau_interop GL_AMD_multi_draw_indirect GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ARB_base_instance GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_internalformat_query GL_ARB_map_buffer_alignment GL_ARB_shader_atomic_counters GL_ARB_shader_image_load_store GL_ARB_shading_language_420pack GL_ARB_shading_language_packing GL_ARB_texture_storage GL_ARB_transform_feedback_instanced GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_transform_feedback GL_AMD_query_buffer_object GL_AMD_shader_trinary_minmax GL_AMD_vertex_shader_layer GL_AMD_vertex_shader_viewport_index GL_ARB_ES3_compatibility GL_ARB_arrays_of_arrays GL_ARB_clear_buffer_object GL_ARB_compute_shader GL_ARB_copy_image GL_ARB_explicit_uniform_location GL_ARB_fragment_layer_viewport GL_ARB_framebuffer_no_attachments GL_ARB_invalidate_subdata GL_ARB_multi_draw_indirect GL_ARB_program_interface_query GL_ARB_robust_buffer_access_behavior GL_ARB_shader_image_size GL_ARB_shader_storage_buffer_object GL_ARB_stencil_texturing GL_ARB_texture_buffer_range GL_ARB_texture_query_levels GL_ARB_texture_storage_multisample GL_ARB_texture_view GL_ARB_vertex_attrib_binding GL_KHR_debug GL_KHR_robustness GL_KHR_texture_compression_astc_ldr GL_AMD_pinned_memory GL_ARB_bindless_texture GL_ARB_buffer_storage GL_ARB_clear_texture GL_ARB_compute_variable_group_size GL_ARB_enhanced_layouts GL_ARB_indirect_parameters GL_ARB_internalformat_query2 GL_ARB_multi_bind GL_ARB_query_buffer_object GL_ARB_seamless_cubemap_per_texture GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shading_language_include GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_stencil8 GL_ARB_vertex_type_10f_11f_11f_rev GL_EXT_debug_label GL_EXT_shader_integer_mix GL_NVX_gpu_memory_info GL_ARB_ES3_1_compatibility GL_ARB_clip_control GL_ARB_conditional_render_inverted GL_ARB_cull_distance GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_get_texture_sub_image GL_ARB_pipeline_statistics_query GL_ARB_shader_texture_image_samples GL_ARB_texture_barrier GL_ARB_transform_feedback_overflow_query GL_EXT_polygon_offset_clamp GL_EXT_shader_image_load_formatted GL_KHR_blend_equation_advanced GL_KHR_context_flush_control GL_KHR_robust_buffer_access_behavior GL_NV_shader_atomic_int64 GL_ARB_ES3_2_compatibility GL_ARB_gpu_shader_int64 GL_ARB_parallel_shader_compile GL_ARB_shader_atomic_counter_ops GL_ARB_shader_ballot GL_ARB_shader_clock GL_ARB_shader_viewport_layer_array GL_EXT_shader_samples_identical GL_EXT_texture_sRGB_R8 GL_KHR_no_error GL_KHR_texture_compression_astc_sliced_3d GL_ARB_gl_spirv GL_ARB_spirv_extensions GL_EXT_window_rectangles GL_MESA_shader_integer_functions GL_ARB_polygon_offset_clamp GL_ARB_texture_filter_anisotropic GL_EXT_memory_object GL_EXT_memory_object_fd GL_EXT_semaphore GL_EXT_semaphore_fd GL_KHR_parallel_shader_compile GL_NV_alpha_to_coverage_dither_control GL_AMD_framebuffer_multisample_advanced GL_EXT_EGL_image_storage GL_EXT_texture_shadow_lod GL_INTEL_blackhole_render GL_MESA_framebuffer_flip_y GL_NV_compute_shader_derivatives GL_EXT_EGL_sync GL_EXT_demote_to_helper_invocation GL_NV_ES1_1_compatibility
WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_float_blend EXT_frag_depth EXT_shader_texture_lod EXT_sRGB EXT_texture_compression_bptc EXT_texture_compression_rgtc EXT_texture_filter_anisotropic MOZ_debug OES_element_index_uint OES_fbo_render_mipmap 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_astc WEBGL_compressed_texture_etc 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: Mesa Project EGL_VERSION: 1.5 EGL_EXTENSIONS: EGL_ANDROID_blob_cache EGL_ANDROID_native_fence_sync EGL_EXT_buffer_age EGL_EXT_create_context_robustness EGL_EXT_image_dma_buf_import EGL_EXT_image_dma_buf_import_modifiers EGL_EXT_present_opaque EGL_EXT_swap_buffers_with_damage EGL_IMG_context_priority EGL_KHR_cl_event2 EGL_KHR_config_attribs EGL_KHR_context_flush_control EGL_KHR_create_context EGL_KHR_create_context_no_error EGL_KHR_fence_sync EGL_KHR_get_all_proc_addresses EGL_KHR_gl_colorspace EGL_KHR_gl_renderbuffer_image EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_3D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_image_base EGL_KHR_no_config_context EGL_KHR_reusable_sync EGL_KHR_surfaceless_context EGL_KHR_swap_buffers_with_damage EGL_EXT_pixel_format_float EGL_KHR_wait_sync EGL_MESA_configless_context EGL_MESA_drm_image EGL_MESA_image_dma_buf_export EGL_MESA_query_driver EGL_WL_bind_wayland_display EGL_WL_create_wayland_buffer_from_image EGL_EXTENSIONS(nullptr): EGL_EXT_device_base EGL_EXT_device_enumeration EGL_EXT_device_query EGL_EXT_platform_base EGL_KHR_client_get_all_proc_addresses EGL_EXT_client_extensions EGL_KHR_debug EGL_EXT_platform_device EGL_EXT_platform_wayland EGL_KHR_platform_wayland EGL_EXT_platform_x11 EGL_KHR_platform_x11 EGL_EXT_platform_xcb EGL_MESA_platform_gbm EGL_KHR_platform_gbm EGL_MESA_platform_surfaceless IsWebglOutOfProcessEnabled: 1
WebGL 2 Driver Renderer: AMD -- AMD Radeon RX 560 Series (polaris11, LLVM 15.0.7, DRM 3.52, 6.4.3-arch1-2)
WebGL 2 Driver Version: 4.6 (Core Profile) Mesa 23.1.3
WebGL 2 Driver Extensions: GL_AMD_conservative_depth GL_AMD_depth_clamp_separate GL_AMD_draw_buffers_blend GL_AMD_framebuffer_multisample_advanced GL_AMD_gpu_shader_int64 GL_AMD_multi_draw_indirect GL_AMD_performance_monitor GL_AMD_pinned_memory GL_AMD_query_buffer_object GL_AMD_seamless_cubemap_per_texture GL_AMD_shader_stencil_export GL_AMD_shader_trinary_minmax GL_AMD_texture_texture4 GL_AMD_vertex_shader_layer GL_AMD_vertex_shader_viewport_index GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ARB_ES2_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_2_compatibility GL_ARB_ES3_compatibility GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compressed_texture_pixel_storage GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_conservative_depth GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_elements_base_vertex GL_ARB_draw_indirect GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_shader GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gl_spirv GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader_int64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_occlusion_query2 GL_ARB_parallel_shader_compile GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_sprite GL_ARB_polygon_offset_clamp GL_ARB_program_interface_query GL_ARB_provoking_vertex GL_ARB_query_buffer_object GL_ARB_robust_buffer_access_behavior GL_ARB_robustness GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_seamless_cube_map GL_ARB_seamless_cubemap_per_texture GL_ARB_separate_shader_objects GL_ARB_shader_atomic_counter_ops GL_ARB_shader_atomic_counters GL_ARB_shader_ballot GL_ARB_shader_bit_encoding GL_ARB_shader_clock GL_ARB_shader_draw_parameters GL_ARB_shader_group_vote GL_ARB_shader_image_load_store GL_ARB_shader_image_size GL_ARB_shader_objects GL_ARB_shader_precision GL_ARB_shader_stencil_export GL_ARB_shader_storage_buffer_object GL_ARB_shader_subroutine GL_ARB_shader_texture_image_samples GL_ARB_shader_texture_lod GL_ARB_shader_viewport_layer_array GL_ARB_shading_language_420pack GL_ARB_shading_language_include GL_ARB_shading_language_packing GL_ARB_spirv_extensions GL_ARB_stencil_texturing GL_ARB_sync GL_ARB_tessellation_shader GL_ARB_texture_barrier GL_ARB_texture_buffer_object GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_buffer_range GL_ARB_texture_compression_bptc GL_ARB_texture_compression_rgtc GL_ARB_texture_cube_map_array GL_ARB_texture_filter_anisotropic GL_ARB_texture_float GL_ARB_texture_gather GL_ARB_texture_mirror_clamp_to_edge GL_ARB_texture_multisample GL_ARB_texture_non_power_of_two GL_ARB_texture_query_levels GL_ARB_texture_query_lod GL_ARB_texture_rectangle GL_ARB_texture_rg GL_ARB_texture_rgb10_a2ui GL_ARB_texture_stencil8 GL_ARB_texture_storage GL_ARB_texture_storage_multisample GL_ARB_texture_swizzle GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ATI_blend_equation_separate GL_ATI_meminfo GL_ATI_texture_float GL_ATI_texture_mirror_once GL_EXT_EGL_image_storage GL_EXT_EGL_sync GL_EXT_abgr GL_EXT_blend_equation_separate GL_EXT_debug_label GL_EXT_demote_to_helper_invocation GL_EXT_depth_bounds_test GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_memory_object GL_EXT_memory_object_fd GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_pixel_buffer_object GL_EXT_polygon_offset_clamp GL_EXT_provoking_vertex GL_EXT_semaphore GL_EXT_semaphore_fd GL_EXT_shader_image_load_formatted GL_EXT_shader_image_load_store GL_EXT_shader_integer_mix GL_EXT_shader_samples_identical GL_EXT_texture_array GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_integer GL_EXT_texture_mirror_clamp GL_EXT_texture_sRGB GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_decode GL_EXT_texture_shadow_lod GL_EXT_texture_shared_exponent GL_EXT_texture_snorm GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_window_rectangles GL_IBM_multimode_draw_arrays GL_INTEL_blackhole_render GL_KHR_blend_equation_advanced GL_KHR_context_flush_control GL_KHR_debug GL_KHR_no_error GL_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior GL_KHR_robustness GL_KHR_texture_compression_astc_ldr GL_KHR_texture_compression_astc_sliced_3d GL_MESA_framebuffer_flip_y GL_MESA_pack_invert GL_MESA_shader_integer_functions GL_MESA_texture_signed_rgba GL_NVX_gpu_memory_info GL_NV_alpha_to_coverage_dither_control GL_NV_compute_shader_derivatives GL_NV_conditional_render GL_NV_copy_image GL_NV_depth_clamp GL_NV_packed_depth_stencil GL_NV_shader_atomic_int64 GL_NV_texture_barrier GL_NV_vdpau_interop GL_OES_EGL_image GL_S3_s3tc
WebGL 2 Extensions: EXT_color_buffer_float EXT_float_blend EXT_texture_compression_bptc EXT_texture_compression_rgtc EXT_texture_filter_anisotropic MOZ_debug OES_draw_buffers_indexed OES_texture_float_linear WEBGL_compressed_texture_astc WEBGL_compressed_texture_etc WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context
Window Protocol: wayland
Desktop Environment: kde
Target Frame Rate: 60
WebGPU Default Adapter: { "navigator.gpu": null }
WebGPU Fallback Adapter: { "navigator.gpu": null }
GPU #1
Active: Yes
Description: AMD Radeon RX 560 Series (polaris11, LLVM 15.0.7, DRM 3.52, 6.4.3-arch1-2)
Vendor ID: 0x1002
Device ID: 0x67ff
Driver Vendor: mesa/radeonsi
Driver Version: 23.1.3.0
RAM: 0
GPU #2
Active: No
Vendor ID: 0x10de
Device ID: 0x10d8
Diagnostics
AzureCanvasBackend: skia
AzureContentBackend: skia
AzureFallbackCanvasBackend: skia
CMSOutputProfile: Empty profile data
Display0: 3840x1600@60Hz scales:1.000000|1.000000
DisplayCount: 1
Decision Log
HW_COMPOSITING:
default: available,
OPENGL_COMPOSITING:
default: available,
WEBRENDER:
default: available,
user: force_enabled, Force enabled by pref,
WEBRENDER_COMPOSITOR:
default: disabled, Disabled by default, Blocklisted; failure code FEATURE_FAILURE_DISABLED
env: blocklisted, Blocklisted by gfxInfo, Blocklisted; failure code FEATURE_FAILURE_WEBRENDER_COMPOSITOR_DISABLED
runtime: blocked, Cannot be enabled in release or beta, Blocklisted; failure code FEATURE_FAILURE_DISABLE_RELEASE_OR_BETA
WEBRENDER_PARTIAL:
default: available,
WEBRENDER_SHADER_CACHE:
default: disabled, Disabled by default, Blocklisted; failure code FEATURE_FAILURE_DISABLED
WEBRENDER_OPTIMIZED_SHADERS:
default: available,
WEBRENDER_ANGLE:
default: available,
env: unavailable, OS not supported, Blocklisted; failure code FEATURE_FAILURE_OS_NOT_SUPPORTED
WEBRENDER_DCOMP_PRESENT:
default: available,
user: disabled, User disabled via pref, Blocklisted; failure code FEATURE_FAILURE_DCOMP_PREF_DISABLED
env: unavailable, Requires GPU process, Blocklisted; failure code FEATURE_FAILURE_NO_GPU_PROCESS
runtime: unavailable, Requires ANGLE, Blocklisted; failure code FEATURE_FAILURE_DCOMP_NOT_ANGLE
WEBRENDER_SCISSORED_CACHE_CLEARS:
default: available,
WEBGPU:
default: available,
runtime: blocked, WebGPU cannot be enabled in release or beta, Blocklisted; failure code WEBGPU_DISABLE_RELEASE_OR_BETA
X11_EGL:
default: available,
DMABUF:
default: available,
HARDWARE_VIDEO_DECODING:
default: available,
runtime: unavailable, Force disabled by gfxInfo, Blocklisted; failure code FEATURE_FAILURE_VIDEO_DECODING_TEST_FAILED
DMABUF_SURFACE_EXPORT:
default: blocked, Blocklisted by gfxInfo, Blocklisted; failure code FEATURE_FAILURE_BROKEN_DRIVER
BACKDROP_FILTER:
default: available,
CANVAS_RENDERER_THREAD:
default: available,
ACCELERATED_CANVAS2D:
default: available,

Media
-----

Audio Backend: pulse-rust
Max Channels: 2
Preferred Sample Rate: 48000
Roundtrip latency (standard deviation): 216.92ms (89.29)
Codec Support Information:
Output Devices
Name: Group, Vendor, State, Preferred, Format, Channels, Rate, Latency
Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X] Digital Stereo (HDMI 3): /devices/pci0000:00/0000:00:03.1/0000:0c:00.1/sound/card3, Advanced Micro Devices, Inc. [AMD/ATI], Enabled, All, default: F32LE, support: S16LE S16BE F32LE F32BE, 2, default: 48000, support: 1 - 384000, 0 - 0
Input Devices
Name: Group, Vendor, State, Preferred, Format, Channels, Rate, Latency
LifeCam VX-5000 Mono: /devices/pci0000:00/0000:00:01.3/0000:01:00.0/usb1/1-2/1-2:1.2/sound/card0, Microsoft Corp., Enabled, All, default: S16LE, support: S16LE S16BE F32LE F32BE, 1, default: 48000, support: 1 - 384000, 0 - 0
Monitor of Baffin HDMI/DP Audio [Radeon RX 550 640SP / RX 560/560X] Digital Stereo (HDMI 3): /devices/pci0000:00/0000:00:03.1/0000:0c:00.1/sound/card3, Advanced Micro Devices, Inc. [AMD/ATI], Enabled, None, default: F32LE, support: S16LE S16BE F32LE F32BE, 2, default: 48000, support: 1 - 384000, 0 - 0

Enumerate database

Environment Variables
---------------------

DISPLAY: :1
MOZ_ENABLE_WAYLAND: 1
MOZ_ASSUME_USER_NS: 1
MOZ_CRASHREPORTER_EVENTS_DIRECTORY: /home/dk/.mozilla/firefox/ies85mrj.default/crashes/events
MOZ_CRASHREPORTER_RESTART_ARG_0: /usr/lib/firefox/firefox
MOZ_CRASHREPORTER_RESTART_ARG_1:
MOZ_CRASHREPORTER_DATA_DIRECTORY: /home/dk/.mozilla/firefox/Crash Reports
MOZ_CRASHREPORTER_PING_DIRECTORY: /home/dk/.mozilla/firefox/Pending Pings
MOZ_CRASHREPORTER_STRINGS_OVERRIDE: /usr/lib/firefox/browser/crashreporter-override.ini
MOZ_LAUNCHED_CHILD:
MOZ_APP_SILENT_START:
XRE_PROFILE_PATH:
XRE_PROFILE_LOCAL_PATH:
XRE_START_OFFLINE:
XRE_BINARY_PATH:
XRE_RESTARTED_BY_PROFILE_MANAGER:

Experimental Features
---------------------

about:home startup cache (browser.startup.homepage.abouthome_cache.enabled): true
Cookies: SameSite=None requires secure attribute (network.cookie.sameSite.noneRequiresSecure): false
CSS: Masonry Layout (layout.css.grid-template-masonry-value.enabled): false
Developer Tools: Compatibility Panel (devtools.inspector.compatibility.enabled): true
Developer Tools: Service Worker debugging (devtools.debugger.features.windowless-service-workers): false
Media: JPEG XL (image.jxl.enabled): false
Address Bar: show results during IME composition (browser.urlbar.keepPanelOpenDuringImeComposition): false
Web API: WebGPU (dom.webgpu.enabled): false
WebRTC Global Mute Toggles (privacy.webrtc.globalMuteToggles): false

Remote Experiments
------------------

Important Modified Preferences
------------------------------

accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.amount_written: 2082131
browser.cache.disk.capacity: 1048576
browser.cache.disk.filesystem_reported: 1
browser.cache.disk.hashstats_reported: 1
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.telemetry_report_ID: 52
browser.cache.frecency_experiment: 1
browser.contentblocking.category: custom
browser.download.useDownloadDir: false
browser.places.smartBookmarksVersion: 8
browser.search.region: CA
browser.search.update: false
browser.sessionstore.interval: 360000
browser.sessionstore.upgradeBackup.latestBuildID: 20230711154437
browser.startup.homepage: about:blank
browser.startup.homepage_override.buildID: 20230711154437
browser.startup.homepage_override.mstone: 115.0.2
browser.tabs.firefox-view.mobilePromo.dismissed: true
browser.tabs.firefox-view.ui-state.tab-pickup.open: true
browser.tabs.inTitlebar: 1
browser.urlbar.clickSelectsAll: true
browser.urlbar.lastSuggestionsPromptDate: 20180105
browser.urlbar.matchBuckets: general:5,suggestion:Infinity
browser.urlbar.placeholderName: Google
browser.urlbar.placeholderName.private: Google
browser.urlbar.quicksuggest.migrationVersion: 2
browser.urlbar.quicksuggest.scenario: history
browser.urlbar.resultBuckets: {"children":[{"maxResultCount":1,"children":[{"group":"heuristicTest"},{"group":"heuristicExtension"},{"group":"heuristi
browser.urlbar.resultGroups: {"children":[{"maxResultCount":1,"children":[{"group":"heuristicTest"},{"group":"heuristicExtension"},{"group":"heuristi
browser.urlbar.searchSuggestionsChoice: false
browser.urlbar.showSearchSuggestionsFirst: false
browser.urlbar.suggest.searches: false
browser.urlbar.tabToSearch.onboard.interactionsLeft: 2
browser.urlbar.timesBeforeHidingSuggestionsHint: 0
doh-rollout.balrog-migration-done: true
doh-rollout.doneFirstRun: true
doh-rollout.home-region: CA
doh-rollout.mode: 0
doh-rollout.uri: https://private.canadianshield.cira.ca/dns-query
dom.forms.autocomplete.formautofill: true
dom.ipc.processCount.web: 4
extensions.formautofill.creditCards.used: 2
extensions.lastAppVersion: 115.0.2
font.default.x-western: sans-serif
font.internaluseonly.changed: true
font.minimum-size.x-western: 12
font.name.monospace.x-western: Liberation Mono
font.name.serif.x-western: Liberation Serif
gfx.blacklist.accelerated-canvas2d.failureid: FEATURE_FAILURE_DL_BLOCKLIST_NO_ID
gfx.blacklist.vaapi: 4
gfx.blacklist.vaapi.failureid: FEATURE_FAILURE_VAAPI_TEST_FAILED
gfx.webrender.all: true
idle.lastDailyNotification: 1691180351
media.autoplay.default: 5
media.autoplay.enabled: false
media.benchmark.vp9.fps: 246
media.benchmark.vp9.versioncheck: 5
media.eme.enabled: true
media.gmp-gmpopenh264.abi: x86_64-gcc3
media.gmp-gmpopenh264.hashValue: 53a58bfb4c8124ad4f7655b99bfdea290033a085e0796b19245b33b91c0948fdac9f0c3e817130b352493a65d9a7a0fc8a7c1eedc618cdaa2b458073
media.gmp-gmpopenh264.lastDownload: 1689695903
media.gmp-gmpopenh264.lastInstallStart: 1689695902
media.gmp-gmpopenh264.lastUpdate: 1689695903
media.gmp-gmpopenh264.version: 2.3.2
media.gmp-manager.buildID: 20230711154437
media.gmp-manager.lastCheck: 1691177794
media.gmp-manager.lastEmptyCheck: 1691177794
media.gmp-widevinecdm.abi: x86_64-gcc3
media.gmp-widevinecdm.hashValue: 55a7e4b379d5826f01b1a36abd872f411b0ba3cd2edec0c799e82def02f171df1e33365f58d91d2527f1dcaf3644b0ba9f5c4a31e712bee42bc786a5
media.gmp-widevinecdm.lastDownload: 1682642979
media.gmp-widevinecdm.lastDownloadFailed: 1670641313
media.gmp-widevinecdm.lastDownloadFailReason: Error: Failed downloading via ServiceRequest, status: 0, reason: error
media.gmp-widevinecdm.lastInstallStart: 1682642972
media.gmp-widevinecdm.lastUpdate: 1682642979
media.gmp-widevinecdm.version: 4.10.2557.0
media.gmp.storage.version.observed: 1
media.hardwaremediakeys.enabled: false
media.videocontrols.picture-in-picture.video-toggle.enabled: false
mousewheel.default.delta_multiplier_y: 200
network.cookie.prefsMigrated: true
network.dns.disablePrefetch: true
network.http.speculative-parallel-limit: 0
network.predictor.cleaned-up: true
network.predictor.enabled: false
network.prefetch-next: false
network.trr.blocklist_cleanup_done: true
places.database.lastMaintenance: 1690678488
places.history.expiration.transient_current_max_pages: 138214
plugin.disable_full_page_plugin_for_types: application/pdf
privacy.clearOnShutdown.passwords: false
privacy.donottrackheader.enabled: true
privacy.history.custom: true
privacy.purge_trackers.date_in_cookie_database: 0
privacy.purge_trackers.last_purge: 1691180353310
privacy.sanitize.pending: [{"id":"newtab-container","itemsToClear":[],"options":{}}]
privacy.socialtracking.notification.counter: 2
privacy.socialtracking.notification.enabled: false
privacy.socialtracking.notification.lastShown: 1574820038943
privacy.userContext.enabled: true
privacy.userContext.extension: @contain-facebook
privacy.userContext.longPressBehavior: 2
privacy.userContext.ui.enabled: true
security.pki.mitm_canary_issuer: CN=DigiCert SHA2 Secure Server CA,O=DigiCert Inc,C=US
security.remote_settings.crlite_filters.checked: 1658581560
security.remote_settings.intermediates.checked: 1658549603
security.sandbox.content.tempDirSuffix: 797701fb-964f-4043-9c44-f63397cec7f1
security.sandbox.plugin.tempDirSuffix: 32a471a0-d16e-4957-91dd-742029359045
security.tls.version.enable-deprecated: true
services.sync.declinedEngines: adblockplus,greasemonkey
services.sync.engine.addresses: true
services.sync.engine.addresses.available: true
services.sync.engine.bookmarks.validation.lastTime: 1541301756
services.sync.engine.creditcards: true
services.sync.engine.passwords.validation.lastTime: 1541301756
services.sync.engine.prefs.modified: false
services.sync.lastPing: 1691177676
services.sync.lastSync: Fri Aug 04 2023 14:38:19 GMT-0600 (Central Standard Time)
signon.importedFromSqlite: true
signon.management.page.hideMobileFooter: true
signon.usage.hasEntry: true
signon.usage.lastUsed: 1607876156
storage.vacuum.last.content-prefs.sqlite: 1690121564
storage.vacuum.last.index: 2
storage.vacuum.last.places.sqlite: 1690295324
ui.osk.enabled: false
widget.gtk.overlay-scrollbars.enabled: false

Important Locked Preferences
----------------------------

fission.autostart.session: true

Library Versions
----------------

NSPR
Expected minimum version: 4.35
Version in use: 4.35

NSS
Expected minimum version: 3.91
Version in use: 3.91

NSSSMIME
Expected minimum version: 3.91
Version in use: 3.91

NSSSSL
Expected minimum version: 3.91
Version in use: 3.91

NSSUTIL
Expected minimum version: 3.91
Version in use: 3.91

Sandbox
-------

Seccomp-BPF (System Call Filtering): true
Seccomp Thread Synchronization: true
User Namespaces: true
Content Process Sandboxing: true
Media Plugin Sandboxing: true
Content Process Sandbox Level: 4
Effective Content Process Sandbox Level: 4
Win32k Lockdown State for Content Process: Win32k Lockdown disabled -- Operating system not supported
GPU Process Sandbox Level: 0
Comment 1 DeKay 2023-08-09 14:23:47 UTC
Here is a shot in the dark for something that might be related.  From https://blog.broulik.de/2023/08/on-the-road-to-plasma-6-contd/ titled "On the Road to Plasma 6, Cont’d" there is the comment 

"Another missing workaround Qt applies on X11 is converting text/x-moz-url mime data to an URI list. Firefox uses this proprietary format during drag and drop operations which meant that under Wayland, Qt apps wouldn’t understand links coming from Firefox. "

I'm still on QT 5.5.19 so likely unrelated but I thought I'd toss it out there.
Comment 2 Nate Graham 2023-08-09 18:52:59 UTC
If you wait 1 or more seconds after dragging but before dropping, does that work?
Comment 3 DeKay 2023-08-09 19:46:01 UTC
(In reply to Nate Graham from comment #2)
> If you wait 1 or more seconds after dragging but before dropping, does that
> work?

No.  I gave it a full ten seconds.  Same result.  And BTW, I mentioned this in the related bug but...

   Right click on tab -> Move Tab -> Move to New Window

works instantaneously.
Comment 4 Nate Graham 2023-08-11 16:55:03 UTC
Ok, thanks.
Comment 5 Harald Sitter 2023-08-18 14:33:21 UTC
Works fine for me on Qt6/Plasm6 FWIW
Comment 6 Nate Graham 2023-08-18 14:34:31 UTC
Same.
Comment 7 DeKay 2023-08-19 19:14:50 UTC
I have experimented some more with "MOZ_ENABLE_WAYLAND=1 firefox".  I had said that dragging tabs to the desktop doesn't work and this is true if I do a slow and deliberate drag from the tab to the Desktop.

BUT if I very quickly grab the tab and almost "flick" it onto the Desktop as quick as I can, it works about roughly one time in three on average.  Sometimes it might work every second time, other times I might need to try four or five times.  Seems like some kind of race condition?

Firefox 116.0.2 and Plasma 5.27.7

Note that dragging a tab from one Firefox window to another Firefox window always works.
Comment 8 DeKay 2023-08-28 03:09:58 UTC
Another discovery.  If I drag the tab onto the Firefox window itself and not the Desktop, the tab opens in a new window immediately and without fail.  This also works perfectly for the xwayland bug I describe in https://bugs.kde.org/show_bug.cgi?id=472158.
Comment 9 David Edmundson 2023-10-03 21:33:06 UTC
This works on latest firefox with kwin master (at time of writing)