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Minimize memory usage in about:memory crashes the browser after it's up for a long while

Users and developers helping users with generic and technical Pale Moon issues on all operating systems.

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jobbautista9
Board Warrior
Board Warrior
Posts: 1147
Joined: 2020-11-03, 06:47
Location: Philippines

Minimize memory usage in about:memory crashes the browser after it's up for a long while

Post by jobbautista9 » 2026-02-02, 11:16

Operating system: Windows 11 x64
Browser version: 34.0.1
32-bit or 64-bit browser?: 64-bit
Problem URL: N/A
Browser theme (if not default): Moonscape + lightweight theme
Installed add-ons: Many, see troubleshooting info
Installed plugins: (about:plugins): SubWebView, SubWebView-IE, SumatraPDF, VLC, Flash, Java, Silverlight

If possible, please include the output of help->troubleshooting information (as text):
Application Basics
------------------

Name: Pale Moon
Version: 34.0.1 (64-bit)
Build ID: 20260121100811
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:6.8) Goanna/20260121 PaleMoon/34.0.1
OS: Windows_NT 10.0
CPU Capabilities: SSE2 AVX AVX2
Safe Mode: false

Extensions
----------

Name: Aviary Add-ons Manager
Version: 1.0.1
Enabled: true
ID: aviary-addons-manager@addons.palemoon.org

Name: BrowserTickTock
Version: 0.1.4
Enabled: true
ID: {2ba8678b-9b58-4636-afcd-84ebcda8a2df}

Name: Chrome Navigator
Version: 0.1.0
Enabled: true
ID: {cfe51efc-2dc4-489c-b7ca-0f72dfba1c3b}

Name: CipherFox
Version: 4.2.0
Enabled: true
ID: cipherfox@mkfly

Name: Classic Add-ons Archive
Version: 2.0.3
Enabled: true
ID: ca-archive@Off.JustOff

Name: Close Tab Toolbar Button
Version: 1.1
Enabled: true
ID: {b742be68-f6d9-48a9-b7d8-7821af47991a}

Name: ColorPili
Version: 1.0.2
Enabled: true
ID: {44d02d22-bc0f-480a-b009-2b3eaa5772a3}

Name: Context Search X
Version: 0.4.6.26
Enabled: true
ID: contextsearch2@lwz.addons.mozilla.org

Name: deCDN
Version: 34.0
Enabled: true
ID: {38DC6B77-0FD5-5F30-AC49-E9D1A422779B}

Name: DOM Inspector
Version: 3.1.7534
Enabled: true
ID: inspector@mozilla.org

Name: Dubtap
Version: 1.0.1
Enabled: true
ID: dubtap@vannilla.org

Name: EPUBReader
Version: 1.5.0.12
Enabled: true
ID: {5384767E-00D9-40E9-B72F-9CC39D655D6F}

Name: Extended Statusbar
Version: 2.1.2
Enabled: true
ID: {daf44bf7-a45e-4450-979c-91cf07434c3d}

Name: GetEmAll!
Version: 1.2.4
Enabled: true
ID: {4f45ab64-73d7-4bde-b9e6-0922abe8e11a}

Name: Go Menu
Version: 1.0.0
Enabled: true
ID: {bb1c1587-42cc-4804-b3a7-7e3104030047}

Name: Greasemonkey for Pale Moon
Version: 3.31.4.1
Enabled: true
ID: greasemonkeyforpm@janekptacijarabaci

Name: Image Assistant
Version: 0.8.4
Enabled: true
ID: {16f796dd-a279-4548-9b3a-393d1eef31df}

Name: Image Search Options
Version: 2.0.3.7
Enabled: true
ID: {4a313247-8330-4a81-948e-b79936516f78}

Name: InlineDisposition Reloaded
Version: 1.0.0.0.1-signed.1-signed
Enabled: true
ID: {914d3a0b-6982-4e58-9a60-2e5d6cf6b09b}

Name: Markdown Viewer
Version: 1.12
Enabled: true
ID: markdownviewer@thiht.fr

Name: Modify HTTP Response
Version: 1.3.3
Enabled: true
ID: modhresponse@Off.JustOff

Name: MozArchiver
Version: 2.1.1
Enabled: true
ID: mozarchiver@lootyhoof-pm

Name: Nazrin
Version: 1.0.1
Enabled: true
ID: nazrin@mima.geidontei.chaotic.ninja

Name: New Preference Editor
Version: 1.0
Enabled: true
ID: NewPrefEditor@yup

Name: Old style JavaScript Alert
Version: 1.3.5
Enabled: true
ID: {78c79379-1502-4792-968a-6c173718a93a}

Name: Open With Edge, IE, Chrome, and More
Version: 4.1.0.1
Enabled: true
ID: {ab91ffec-fe2a-440e-99ca-5260e0ea0c06}

Name: Pale Moon Commander
Version: 3.0.1
Enabled: true
ID: commander@palemoon.org

Name: PermissionsPlus
Version: 2.5.1
Enabled: true
ID: {c3303c6e-5424-41a3-8e65-255687a94434}

Name: PMPlayer
Version: 1.9.1
Enabled: true
ID: {d952f8dd-f45c-4838-8e21-03c1f916883b}

Name: Pure URL
Version: 3.4
Enabled: true
ID: pure-url@palemoon

Name: Reader View
Version: 2.2.0
Enabled: true
ID: {1111dd1e-dd02-4c30-956f-f23c44dfea8e}

Name: Reload and Skip Cache
Version: 1.0.2
Enabled: true
ID: reloadskipcache@franklindm

Name: ReloadRepeat
Version: 34.0
Enabled: true
ID: {60D4414D-327B-53E2-A6EC-97500D0E1F3B}

Name: Remote XUL Manager
Version: 1.3.2
Enabled: true
ID: remotexulmanager@xulforge.com

Name: Revive Pages
Version: 2.3
Enabled: true
ID: RevivePages@yup

Name: Rewrite HTTP Headers (JSON)
Version: 1.05
Enabled: true
ID: moz-rewrite-amo@warren-bank.github.com

Name: Sasuga
Version: 2.3.2
Enabled: true
ID: sasuga@vannilla.org

Name: Search Engine Editor
Version: 1.4.2
Enabled: true
ID: SearchEngineEditor@yup

Name: Snap Links Plus
Version: 2.4.3
Enabled: true
ID: snaplinks@snaplinks.mozdev.org

Name: sttf
Version: 34.0
Enabled: true
ID: {6B0DFFCC-16AA-5CF7-B6DC-DE502F7E7FD0}

Name: Stylem
Version: 2.2.9
Enabled: true
ID: {503a85e3-84c9-40e5-b98e-98e62085837f}

Name: SubWebView
Version: 1.0.5
Enabled: true
ID: subwebview@teknixstuff.com

Name: Tab Groups
Version: 0.4
Enabled: true
ID: firefox-tabgroups@mozilla.com

Name: tabTooltip
Version: 1.2
Enabled: true
ID: tabTooltip@onemen.com

Name: ThemeTool
Version: 6.2.0
Enabled: true
ID: {0daf556d-70de-4b15-a90f-b30395bd9c22}

Name: Tilt
Version: 1.0.1.1-signed.1-signed
Enabled: true
ID: tilt@mozilla.com

Name: Toolbox Plus
Version: 1.1.3
Enabled: true
ID: toolboxplus@franklindm

Name: uBlock Origin
Version: 1.16.6.1
Enabled: true
ID: uBlock0@raymondhill.net

Name: URL Rewriter
Version: 2.8.5
Enabled: true
ID: url-rewriter@papush

Name: V3 - Get Old YouTube Layout [ TurboLauncher ]
Version: 2.0.0.0
Enabled: true
ID: V3-eov3cv@hotmail.com

Name: Website Navigation Bar
Version: 3.9
Enabled: true
ID: {eab176e7-2072-480e-8db7-9e40a80723cd}

Name: Windosize
Version: 34.0
Enabled: true
ID: {8DA26D99-C9FC-53AF-A172-AA78417EB721}

Name: Window Menu
Version: 1.1.7
Enabled: true
ID: winmenu@kurosu

Name: Yet Another about:config Helper
Version: 1.1
Enabled: true
ID: {f19cdddc-15c3-4c09-96b7-2b8f18f2578f}

Name: Zoom Label
Version: 2.0
Enabled: true
ID: zoomlabel@om

Name: ExtExp
Version: 34.0
Enabled: false
ID: {A1B40EBE-CFA1-5353-8C69-9B76E30B8788}

Name: FoxyProxy Standard
Version: 4.6.5
Enabled: false
ID: foxyproxy@eric.h.jung

Name: GeoFlag
Version: 34.0
Enabled: false
ID: {76843B06-C8C5-5088-90C5-679EA2F00123}

Name: History Submenus the Third
Version: 2.4.7782
Enabled: false
ID: history-submenus@projects.binaryoutcast.com

Graphics
--------

Features
Compositing: Direct3D 11
GPU Accelerated Windows: 2/2 Direct3D 11 (OMTC)
Asynchronous Pan/Zoom: none
WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000010214) EGL_VERSION: 1.4 (ANGLE 2.1.0.) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_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_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 1 Driver Renderer: Google Inc. -- ANGLE (AMD Radeon(TM) Graphics Direct3D11 vs_5_0 ps_5_0)
WebGL 1 Driver Version: OpenGL ES 2.0 (ANGLE 2.1.0.)
WebGL 1 Driver Extensions: GL_OES_element_index_uint GL_OES_packed_depth_stencil GL_OES_get_program_binary GL_OES_rgb8_rgba8 GL_EXT_texture_format_BGRA8888 GL_EXT_read_format_bgra GL_NV_pixel_buffer_object GL_OES_mapbuffer GL_EXT_map_buffer_range GL_EXT_color_buffer_half_float GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_float GL_OES_texture_float_linear GL_EXT_texture_rg GL_EXT_texture_compression_dxt1 GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_OES_compressed_ETC1_RGB8_texture GL_EXT_sRGB GL_ANGLE_depth_texture GL_OES_depth32 GL_EXT_texture_storage GL_OES_texture_npot GL_EXT_draw_buffers GL_EXT_texture_filter_anisotropic GL_EXT_occlusion_query_boolean GL_NV_fence GL_EXT_disjoint_timer_query GL_EXT_robustness GL_EXT_blend_minmax GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_pack_reverse_row_order GL_OES_standard_derivatives GL_EXT_shader_texture_lod GL_EXT_frag_depth GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_EXT_discard_framebuffer GL_EXT_debug_marker GL_OES_EGL_image GL_OES_EGL_image_external GL_NV_EGL_stream_consumer_external GL_EXT_unpack_subimage GL_NV_pack_subimage GL_OES_vertex_array_object GL_KHR_debug GL_ANGLE_lossy_etc_decode GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_sync_query GL_CHROMIUM_copy_texture
WebGL 1 Extensions: 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_get 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_etc1 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 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 0000000000010214) EGL_VERSION: 1.4 (ANGLE 2.1.0.) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_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_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 Driver Renderer: Google Inc. -- ANGLE (AMD Radeon(TM) Graphics Direct3D11 vs_5_0 ps_5_0)
WebGL 2 Driver Version: OpenGL ES 3.0 (ANGLE 2.1.0.)
WebGL 2 Driver Extensions: GL_OES_element_index_uint GL_OES_packed_depth_stencil GL_OES_get_program_binary GL_OES_rgb8_rgba8 GL_EXT_texture_format_BGRA8888 GL_EXT_read_format_bgra GL_NV_pixel_buffer_object GL_OES_mapbuffer GL_EXT_map_buffer_range GL_EXT_color_buffer_half_float GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_float GL_OES_texture_float_linear GL_EXT_texture_rg GL_EXT_texture_compression_dxt1 GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_OES_compressed_ETC1_RGB8_texture GL_EXT_sRGB GL_ANGLE_depth_texture GL_OES_depth32 GL_EXT_texture_storage GL_OES_texture_npot GL_EXT_draw_buffers GL_EXT_texture_filter_anisotropic GL_EXT_occlusion_query_boolean GL_NV_fence GL_EXT_disjoint_timer_query GL_EXT_robustness GL_EXT_blend_minmax GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_pack_reverse_row_order GL_OES_standard_derivatives GL_EXT_shader_texture_lod GL_EXT_frag_depth GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_EXT_discard_framebuffer GL_EXT_debug_marker GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_NV_EGL_stream_consumer_external GL_EXT_unpack_subimage GL_NV_pack_subimage GL_EXT_color_buffer_float GL_OES_vertex_array_object GL_KHR_debug GL_ANGLE_lossy_etc_decode GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_sync_query GL_CHROMIUM_copy_texture GL_EXT_texture_norm16
WebGL 2 Extensions: EXT_color_buffer_float EXT_texture_filter_anisotropic EXT_disjoint_timer_query MOZ_debug_get OES_texture_float_linear WEBGL_compressed_texture_etc WEBGL_compressed_texture_etc1 WEBGL_compressed_texture_s3tc WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context MOZ_WEBGL_lose_context MOZ_WEBGL_compressed_texture_s3tc
Hardware H264 Decoding: Yes; Using D3D11 API
Audio Backend: wasapi
Direct2D: true
DirectWrite: true (10.0.22621.6133)
GPU #1
Active: Yes
Description: AMD Radeon(TM) Graphics
Vendor ID: 0x1002
Device ID: 0x1636
Driver Version: 30.0.13002.19003
Driver Date: 9-28-2022
Drivers: aticfx64 aticfx64 aticfx64 amdxc64 aticfx32 aticfx32 aticfx32 amdxc32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a
Subsys ID: 16cc1043
RAM: 512
GPU #2
Active: No
Description: NVIDIA GeForce GTX 1650
Vendor ID: 0x10de
Device ID: 0x1f9d
Driver Version: 32.0.15.6607
Driver Date: 10-20-2024
Drivers: C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumdx.dll C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumd.dll,C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumd.dll,C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumd.dll,C:\Windows\System32\DriverStore\FileRepository\nvam.inf_amd64_7e083f37999613bd\nvldumd.dll
Subsys ID: 16cc1043
RAM: 4096
Diagnostics
AzureCanvasBackend: direct2d 1.1
AzureContentBackend: direct2d 1.1
AzureFallbackCanvasBackend: cairo





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

accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.capacity: 358400
browser.cache.disk.smart_size_cached_value: 640000
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.download.importedFromSqlite: true
browser.download.manager.showWhenStarting: false
browser.places.smartBookmarksVersion: 4
browser.search.useDBForOrder: true
browser.startup.homepage: about:newtab
browser.startup.homepage_override.buildID: 20260121100811
browser.startup.homepage_override.mstone: 6.8.0
extensions.lastAppVersion: 34.0.1
font.internaluseonly.changed: true
general.useragent.compatMode: 0
general.useragent.compatMode.firefox: false
general.useragent.compatMode.gecko: false
general.useragent.override.bunnings.com.au: Mozilla/5.0 (%OS_SLICE% rv:78.0) Gecko/20100101 Firefox/78.0
general.useragent.override.cignalplay.com: Mozilla/5.0 (%OS_SLICE% rv:128.0) Gecko/20100101 Goanna/6.7 Firefox/128.0 PaleMoon/33.8.0
general.useragent.override.donmai.us: PaleMoon/33.9.1 Goanna/20251016 (%OS_SLICE% rv:6.8)
general.useragent.override.drive.google.com: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Goanna/6.8 Firefox/128.0 PaleMoon/33.9.1
general.useragent.override.pbs.gov.ph: Mozilla/5.0 (%OS_SLICE% rv:115.0) Gecko/20100101 Goanna/6.7 Firefox/115.0 PaleMoon/33.8.0
general.useragent.override.smarte.top: Mozilla/5.0 (Android 13; Mobile; rv:139.0) Gecko/139.0 Firefox/139.0
general.useragent.override.wheelmap.pro: Mozilla/5.0 (%OS_SLICE% rv:128.0) Gecko/20100101 Firefox/128.0
general.useragent.override.yewtu.be: PaleMoon/33.9.1 Goanna/20251016 (%OS_SLICE% rv:6.8)
general.useragent.updates.lastupdated: 1770015582986
gfx.crash-guard.d3d11layers.appVersion: 34.0.1
gfx.crash-guard.d3d11layers.deviceID: 0x1636
gfx.crash-guard.d3d11layers.driverVersion: 30.0.13002.19003
gfx.crash-guard.d3d11layers.feature-d2d: true
gfx.crash-guard.d3d11layers.feature-d3d11: true
gfx.crash-guard.status.d3d11layers: 2
gfx.crash-guard.status.d3d11video: 2
gfx.crash-guard.status.d3d9video: 2
javascript.options.wasm: false
javascript.options.wasm_baselinejit: false
media.av1.enabled: true
media.benchmark.vp9.fps: 164
media.benchmark.vp9.versioncheck: 3
media.hardware-video-decoding.failed: false
media.mediasource.enabled: false
network.cookie.cookieBehavior: 3
network.cookie.prefsMigrated: true
network.http.max-connections: 48
network.http.max-persistent-connections-per-proxy: 12
network.http.spdy.enabled: false
network.http.spdy.enabled.http2: false
network.warnOnAboutNetworking: false
places.database.lastMaintenance: 1770017864
places.history.expiration.transient_current_max_pages: 133456
plugin.disable_full_page_plugin_for_types:
plugin.state.flash: 1
plugin.state.npctrl: 1
plugin.state.nppdfviewer: 2
plugin.state.npvlc: 2
privacy.cpd.connectivityData: true
privacy.cpd.cookies: false
privacy.cpd.downloads: false
privacy.cpd.formdata: false
privacy.cpd.history: false
privacy.cpd.sessions: false
privacy.GPCheader.enabled: true
privacy.sanitize.migrateFx3Prefs: true
privacy.sanitize.timeSpan: 0
security.disable_button.openCertManager: false
security.insecure_field_warning.contextual.enabled: true
services.sync.declinedEngines: forms,history
services.sync.engine.greasemonkey: true
services.sync.engine.history: false
services.sync.engine.prefs.modified: false
services.sync.lastPing: 1770015051
services.sync.lastSync: Mon Feb 02 2026 19:02:29 GMT+0800 (Malay Peninsula Standard Time)
services.sync.numClients: 2
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1768111136
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

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

Places Database
---------------

JavaScript
----------

Incremental GC: true

Accessibility
-------------

Activated: false
Prevent Accessibility: 1

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

NSPR
Expected minimum version: 4.35
Version in use: 4.35

NSS
Expected minimum version: 3.90.9
Version in use: 3.90.9

NSSSMIME
Expected minimum version: 3.90.9
Version in use: 3.90.9

NSSSSL
Expected minimum version: 3.90.9
Version in use: 3.90.9

NSSUTIL
Expected minimum version: 3.90.9
Version in use: 3.90.9
When I try to minimize memory usage in about:memory after the browser has quite some uptime (when I replicated the latest crash it was like 3 hours) and the memory usage hovers around 710 to 800+ MB after it's idle for quite a while with only the Quickdial page opened (ensuring that there are no ghost windows), I can somewhat reliably crash the browser in my usual profile with an access violation.

I thought at first that this was due to my personal build using mimalloc; but when I was able to accidentally reproduce the crash in a jemalloc build I've decided to try it in the official mainline build of 34.0.1, and sure enough I was able to get a crash there as well.

I've uploaded a 7zip archive containing both a minidump and memory report (not anonymized) to the FTP. The filename is palemoon-crash_mmu-crash.7z (295 MB)
Image

Tired of creating stuff!

Avatar artwork by Shinki669: https://www.pixiv.net/artworks/113645617

XUL add-ons developer. You can find a list of add-ons I manage at http://rw.rs/~job/software.html.

User avatar
Moonchild
Project founder
Project founder
Posts: 38938
Joined: 2011-08-28, 17:27
Location: Sweden

Re: Minimize memory usage in about:memory crashes the browser after it's up for a long while

Post by Moonchild » 2026-02-02, 16:01

Thanks for reporting and uploading the crash dump.

Looks like this might be a race condition when removing entries from the image load cache. Looks fairly straightforward. I'll open an issue for it.

EDIT: Issue #2928 (UXP)
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