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There is ONE SPECIFIC email message in my inbox that I cannot move, copy or delete. Whether I drag-and-drop or use drop down menu - same result. This is the ONLY message in all my email accounts/inboxes which has this problem.

Continuing the attempt to move or copy causes the drop down menu to ask me if I want to move/copy the message AGAIN - but it still does not move or get copied. Hitting "Delete" on my keyboard or clicking the "garbage can" icon in the drop down menu has no effect - the email remains in my inbox.

I am using Tbird 140.1.0esr (64-bit)

I'm running Thunderbird 140.1.0esr 64-bit on Windows 11, all up to date. I've tried several times to add a new account to receive email to the webmaster for my website. The email address is set up with my web host. I want to add the account so that I can test but the process hangs.

From the main page I choose Tools > Account Settings > New Account > Mail Account then provide the required full name and email address then click Continue. I get what appears to be a screen indicating that processing is taking place (the rotating circle) but it never concludes.

I used Webmaster as the user name and webmaster@mydomainname.com.

Can anyone suggest what I might do to fix this?

after the latest firefox update my screenshots will no longer download to my desktop but are sent directly to my downloads folder on windows 11. It has worked for years downloading to my desktop...what did you do? All the settings are set for DESKTOP ie, my computer and firefox but it will not work. Can you please help me?

I can no longer change the text font and color on my emails and save them as my defaults. Each email or reply changes to black text despite my setting a different color. I am using Thunderbird version 140.1.0esr (64-bit).

After the most recent update, my pinned tabs and tab groups do not restore when I open Firefox, even though I have "Open previous windows and tabs" checked on settings.

I've gone through some responses to other posts with the same issue, and I am able to recover a window that still has the original tabs and tab groups, and it works fine. But again, when I close Firefox and restart it, they are all gone again.

It's a pain in the b*** that the workaround is to keep navigating to previous windows and finding one that works, over and over again. Surely there's a way to restore the functionality of the tabs and tab groups so they don't vanish every time you close Firefox.

When I read a thread and then it shows comments I can't read them on Mozilla anymore

I went to Google Chrome and I can read them so its something with my browser

I have two issues that are related to a buggy interaction between Thunderbird and Microsoft's email server.

Issue (1) When I send an email with my Outlook email address (from the Android app or from outlook.live.com, but not Thunderbird), my email address shows up as a jumbled mess in the sent folder on Thunderbird.

It appears to the effect of

IMCEAEX-_O=FIRST+20ORGANIZATION_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+XXXXXXXXXXXXXXXXX+29_CN=RECIPIENTS_CN=XXXXXXXXXXXXXXXX@sct-XX-XX-XXXX-X-msonline-outlook-6f06c.templateTenant

(I have masked some potentially sensitive information).

In the sent folder on my Outlook Android app, my email address looks normal. It also looks fine on a browser in outlook.live.com. However, it's in the sent folder on Thunderbird that my email address is a mess.

Issue (2) When my Outlook email address is involved, the sending and receiving email addresses in the "correspondent" field are swapped in Thunderbird.

There are a couple situations where this swap happens:

1. Sending an email with my Outlook email account (either through the Android app or outlook.live.com, but not Thunderbird). In my Outlook sent folder on Thunderbird, the "correspondent" field shows my jumbled email address and not the receiving address, such as bob@gmail.com. Likewise, In the inbox of the receiving email account (such as bob@gmail.com) on Thunderbird, the "correspondent" field shows bob@gmail.com and not my Outlook email address.
2. Sending an email with any other account in Thunderbird to my Outlook email address. In my Outlook inbox on Thunderbird, the "correspondent" field shows my Outlook email address (this time unjumbled) and not the sending email address. However, in the sent folder of the sending email account in Thunderbird, the "correspondent" field shows up correctly (i.e., my Outlook email address).

These two issues are perplexing and probably related. Thank you for any help!

Hallo und guten Tag, auf meinem Desktop habe ich seit einigen Tagen einen neuen Ordner mit der Bezeichnung - Alte Firefox-Daten - . Ich kann den Ordner leider nicht löschen. Alle Versuche sind bisher gescheitert.

Habe Mozilla Firefox schon 2-mal deinstalliert etc. Der besagte Ordner lässt sich trotzdem nicht löschen.

Angeblich wegen fehlender Berechtigung. Was kann ich machen?

Mit freundlichen Grüßen

Hermann Wieschebrock

When trying to sync Firefox on my phone, the second step is to go to the menu, and tap sync and save data. However there is no button like that on my android version of Firefox.

Every time I shut down my PC, Firefox starts up on boot having signed out out my account, signed out of all websites and losing all site data including passwords. I have had this problem for more than a week if not two weeks at this point, and I've asked for help and all I have heard is to make sure Firefox is set to remember your history. I've checked this setting, fixed it and hasn't worked to solve anything. I need help urgently because I'm getting super frustrated by how buggy this browser has become.

I am having issue with loading a website, the way it's currently set up is under a container using proxy connection Sock5 with the valid parameter. However, it still doesn't appear to be loading the site after restarting the browser.

Appreciate in advance for any help into this matter

Thank you

It seems that since the Version 141.0 update, initial startup of FF seems to take ve-e-e-ery long (approx 3-4 minutes).

The startup time/lag seems almost the same as it takes to restart after an update.

Anyone else experience this also? Thanks.

There are three rows of icons on the home page with my most frequently used sites. It has always been relatively stable, minor changes occasionally as I go to different sites. Now it has removed most of the sites I use but put in sites I may have visited once or twice in the past. When I dismiss them, they go away but my regular sites don't come back, I get more esoteric sites that I don't use and still don't get my most used sites back. I am not sure of the proper terminology for any of this, please excuse me for that. I don't want to delete them, just get back the sites I visit every day. Thank you. Ann DIngee

Hi there; Using an M650 from Logitech. 'Back' thumb button works on other browser (Edge); in Windows Explorer; on a different computer;...but not in my Firefox browser. Anybody know? Thanks!

Application Basics

Name: Firefox Version: 141.0 Build ID: 20250717180000 Distribution ID: Update Channel: release User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0 OS: Windows_NT 10.0 26100 Launcher Process: Enabled Multiprocess Windows: 1/1 Fission Windows: 1/1 Enabled by default Remote Processes: 10 Enterprise Policies: Inactive Google Location Service Key: Found Google Safebrowsing Key: Found Mozilla Location Service Key: Found Safe Mode: false Memory Size (RAM): 7.7 GB Disk Space Available: 74.1 GB Pointing Devices: Mouse, Touchscreen, and Pen Digitizer

Crash Reports for the Last 3 Days

Remote Features

1-Callout Contextual Chatbot Suggestion Treatment A: Tab Switching Copy Rollout: (treatment-a-tab-switching-copy) Address Autofill Desktop ( Pref, Release Rollout ): (enable-address-autofill) BackgroundUpdate: Enable unelevated installations (Rollout) -- 3-release: (enabled) CHIPS Rollout to Firefox: (control) Custom Wallpapers, No Message Rollout - Release: (control) Disable Ads Startup Cache: (control) Disable Enrollment Status Telemetry for Firefox Desktop (via nimbusTelemetry): (control) Encrypted Client Hello - Fallback Mechanism: (control) Limit use of OCSP - Rollout: (enforce) Fx Accounts Ping (release rollout 2): (control) One Click Sponsored Settings: (control) PDF Annotations - Highlight - Treatment B Rollout: (treatment-b) Product Insight Telemetry via Server Knobs - Rollout - Release: (control-rollout) Relay integration into Firefox 118+ Release for all FXA and autofill users: (enable-relay-integration) Simplified Chatbot Onboarding - Short copy, 1 step Rollout: (treatment-c-short-copy-1-step) Smart Tab Groups Rollout: (smart-tab-groups) Spoc positions and placements - Rollout: (control) Storage Access Heuristic Restriction Rollout: (treatment-branch) Tab groups 50 rollout no onboarding: (tab-groups) Tab groups promotional onboarding: (onboarding) Unified API for spocs and top sites - controlled rollout for release 133+: (control) unified-search-button-callout-rollout-v1: (control) Upgrade Spotlight Rollout: (treatment) Upgraded sidebar - 138 broad rollout: (rollout-treatment) Visual Card updates: (updated)

Remote Processes

Type: Web Content Count: 1 / 8

Type: GPU Count: 1

Type: Socket Count: 1

Type: Preallocated Count: 3

Type: Privileged About Count: 1

Type: RDD Count: 1

Type: Extension Count: 1

Type: Utility JavaScript Oracle Count: 1

Add-ons

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

Name: Form Autofill Type: extension Version: 1.0.1 Enabled: true Location: app-builtin-addons ID: formautofill@mozilla.org

Name: Logitech SetPoint Type: extension Version: 6.60.91resigned1 Enabled: true Location: app-profile ID: {84380428-8c9d-4bdf-913d-b2c34d6562d9}

Name: New Tab Type: extension Version: 141.1.0 Enabled: true Location: app-builtin-addons ID: newtab@mozilla.org

Name: Picture-In-Picture Type: extension Version: 1.0.0 Enabled: true Location: app-builtin-addons ID: pictureinpicture@mozilla.org

Name: Web Compatibility Interventions Type: extension Version: 141.3.0 Enabled: true Location: app-builtin-addons ID: webcompat@mozilla.org

Name: System theme — auto Type: theme Version: 1.4.2 Enabled: true Location: app-builtin ID: default-theme@mozilla.org

Name: Dark Type: theme Version: 1.3.3 Enabled: false Location: app-builtin ID: firefox-compact-dark@mozilla.org

Name: Firefox Alpenglow Type: theme Version: 1.5 Enabled: false Location: app-builtin ID: firefox-alpenglow@mozilla.org

Name: Light Type: theme Version: 1.3.2 Enabled: false Location: app-builtin ID: firefox-compact-light@mozilla.org

Security Software

Type: McAfee

Type:

Type: McAfee;Windows Firewall

Legacy User Stylesheets

Active: false Stylesheets: No stylesheets found

Graphics

Features Window Device Pixel Ratios: 1.25 Compositing: WebRender Font Visibility Debug Info: Windows Platform 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: outOfProcess: false inProcess: true EGL_VENDOR: Google Inc. 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}, "features": [ "bgra8unorm-storage", "core-features-and-limits", "depth-clip-control", "depth32float-stencil8", "float32-filterable", "indirect-first-instance", "rg11b10ufloat-renderable", "shader-f16", "texture-compression-bc", "texture-compression-bc-sliced-3d", "timestamp-query" ], "limits": { "maxBindGroups": 8, "maxBindGroupsPlusVertexBuffers": 24, "maxBindingsPerBindGroup": 65535, "maxBufferSize": 1073741824, "maxColorAttachmentBytesPerSample": 32, "maxColorAttachments": 8, "maxComputeInvocationsPerWorkgroup": 768, "maxComputeWorkgroupSizeX": 1024, "maxComputeWorkgroupSizeY": 1024, "maxComputeWorkgroupSizeZ": 64, "maxComputeWorkgroupStorageSize": 32768, "maxComputeWorkgroupsPerDimension": 65535, "maxDynamicStorageBuffersPerPipelineLayout": 4, "maxDynamicUniformBuffersPerPipelineLayout": 8, "maxInterStageShaderVariables": 16, "maxSampledTexturesPerShaderStage": 64, "maxSamplersPerShaderStage": 64, "maxStorageBufferBindingSize": 1073741824, "maxStorageBuffersPerShaderStage": 64, "maxStorageTexturesPerShaderStage": 64, "maxTextureArrayLayers": 2048, "maxTextureDimension1D": 16384, "maxTextureDimension2D": 16384, "maxTextureDimension3D": 2048, "maxUniformBufferBindingSize": 65536, "maxUniformBuffersPerShaderStage": 64, "maxVertexAttributes": 32, "maxVertexBufferArrayStride": 2048, "maxVertexBuffers": 16, "minStorageBufferOffsetAlignment": 32, "minUniformBufferOffsetAlignment": 256 } } } DirectWrite: true (10.0.26100.4484) GPU #1 Active: Yes Description: Intel(R) Graphics Vendor ID: 0x8086 Device ID: 0xa7ac Driver Version: 32.0.101.6790 Driver Date: 4-28-2025 Drivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32 Subsys ID: 8cba103c RAM: 0 GPU #2 Active: No Description: Insignia USB3.0 to dual HDMI Adapter Vendor ID: 0x000b Device ID: 0x000b Driver Version: 1.9.2501.423 Driver Date: 4-23-2025 Drivers: Unknown Subsys ID: 0000000b RAM: 0 Diagnostics AzureCanvasBackend: skia AzureCanvasBackend (UI Process): skia AzureContentBackend: skia AzureContentBackend (UI Process): skia AzureFallbackCanvasBackend (UI Process): skia CMSOutputProfile: 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Display0: 1920x1080@60Hz scales:1.000000|1.250000 Display1: 1920x1080@60Hz scales:1.000000|1.500000 Display2: 1920x1080@60Hz scales:1.000000|1.250000 DisplayCount: 3 HardwareStretching: both=1 window-only=0 full-screen-only=0 none=2 error=0 OverlaySupport: NV12=Scaling YUV2=Scaling BGRA8=Scaling RGB10A2=None VpSR=Not Supported VpAutoHDR=Not Supported SwapChainTearingSupport: Supported GPUProcessPid: 14904 ClearType Parameters: \\.\DISPLAY1 [ Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ] \\.\DISPLAY23 [ Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ] \\.\DISPLAY24 [ Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ] Font Visibility Debug Info: Windows Platform Decision Log HW_COMPOSITING: default: available, D3D11_COMPOSITING: default: available, DIRECT2D: default: disabled, Disabled by default, Blocklisted; failure code FEATURE_FAILURE_DISABLED D3D11_HW_ANGLE: default: available, GPU_PROCESS: default: available, WEBRENDER: default: available, WEBRENDER_COMPOSITOR: default: available, WEBRENDER_PARTIAL: default: available, WEBRENDER_SHADER_CACHE: default: available, WEBRENDER_OPTIMIZED_SHADERS: default: available, WEBRENDER_ANGLE: default: available, WEBRENDER_DCOMP_PRESENT: default: available, WEBRENDER_SCISSORED_CACHE_CLEARS: default: available, env: blocklisted, Blocklisted by gfxInfo, Blocklisted due to known issues: bug 1603515 WEBGPU: default: available, WINDOW_OCCLUSION: default: available, VIDEO_HARDWARE_OVERLAY: default: available, VIDEO_SOFTWARE_OVERLAY: default: available, HW_DECODED_VIDEO_ZERO_COPY: default: available, VP8_HW_DECODE: default: available, VP9_HW_DECODE: default: available, REUSE_DECODER_DEVICE: default: available, BACKDROP_FILTER: default: available, CANVAS_RENDERER_THREAD: default: available, ACCELERATED_CANVAS2D: default: available, REMOTE_CANVAS: default: available, runtime: blocked, Disabled without Direct2D, Blocklisted; failure code FEATURE_REMOTE_CANVAS_NO_DIRECT2D VP8_HW_ENCODE: default: available, VP9_HW_ENCODE: default: available, WMF_HW_DRM: default: available, GL_NORM16_TEXTURES: default: available,

Failure Log (#0): GP+[GFX1-]: shader-cache: Shader disk cache is not supported

Media

Audio Backend: wasapi Max Channels: 2 Preferred Sample Rate: 48000 Roundtrip latency (standard deviation): NaNms (NaN) Codec Support Information: Codec Name: Software Decoding, Hardware Decoding, Software Encoding, Hardware Encoding H264: Supported, Supported, Unsupported, Unsupported VP9: Supported, Supported, Unsupported, Unsupported VP8: Supported, Supported, Unsupported, Unsupported AV1: Supported, Supported, Unsupported, Unsupported HEVC: Unsupported, Supported, Unsupported, Unsupported AAC: Supported, Unsupported, Unsupported, Unsupported MP3: Supported, Unsupported, Unsupported, Unsupported Opus: Supported, Unsupported, Unsupported, Unsupported Vorbis: Supported, Unsupported, Unsupported, Unsupported FLAC: Supported, Unsupported, Unsupported, Unsupported Wave: Supported, Unsupported, Unsupported, Unsupported Output Devices Name: Group, Vendor, State, Preferred, Format, Channels, Rate, Latency Headphones (BE1039): BTHENUM\{0000110b-0000-1000-8000-00805f9b34fb}_VID&000105d6_PID&000a\7&2d3698e1&0&DC13F47871AC_C00000000, Unplugged, None, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 0 - 0 Headphones (2- Bose NC 700 HP): BTHENUM\{0000110b-0000-1000-8000-00805f9b34fb}_VID&0001009e_PID&4024\7&2d3698e1&0&C87B23589E3B_C00000000, Unplugged, None, default: F32LE, support: S16LE F32LE, 2, default: 44100, support: 44100 - 44100, 0 - 0 Headphone (2- Realtek(R) Audio): INTELAUDIO\FUNC_01&VEN_10EC&DEV_0245&SUBSYS_103C8CBA&REV_1000\5&339e38f6&0&0001DIF_000A&UIF_0000, Unplugged, None, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 0 - 0 Headphones (2- WH-1000XM3): BTHENUM\{0000110b-0000-1000-8000-00805f9b34fb}_VID&0002054c_PID&0cd3\7&2d3698e1&0&38184C190193_C00000000, Unplugged, None, default: F32LE, support: S16LE F32LE, 2, default: 44100, support: 44100 - 44100, 0 - 0 Headphones (VIZIO S3820w): BTHENUM\{0000110b-0000-1000-8000-00805f9b34fb}_LOCALMFG&0002\7&2d3698e1&0&40EF4C432B85_C00000000, Unplugged, None, default: F32LE, support: S16LE F32LE, 2, default: 44100, support: 44100 - 44100, 0 - 0 Speaker (2- Realtek(R) Audio): INTELAUDIO\FUNC_01&VEN_10EC&DEV_0245&SUBSYS_103C8CBA&REV_1000\5&339e38f6&0&0001DIF_000A&UIF_0000, Enabled, All, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 144 - 480 Speakers (2- USB Audio Device): USB\VID_0711&PID_5640\6&1ecca734&1&8103, Enabled, All, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 144 - 480 Input Devices Name: Group, Vendor, State, Preferred, Format, Channels, Rate, Latency Stereo Mix (2- Realtek(R) Audio): INTELAUDIO\FUNC_01&VEN_10EC&DEV_0245&SUBSYS_103C8CBA&REV_1000\5&339e38f6&0&0001DIF_000A&UIF_0000, Disabled, None, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 0 - 0 Microphone Array (2- Intel® Smart Sound Technology for Digital Microphones): INTELAUDIO\CTLR_DEV_51CA&LINKTYPE_02&DEVTYPE_00&VEN_8086&DEV_AE20&SUBSYS_8CBA103C&REV_10EC\5&339e38f6&0&0000DIF_000A&UIF_0000, Enabled, All, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 96 - 480 Headset Microphone (2- Realtek(R) Audio): INTELAUDIO\FUNC_01&VEN_10EC&DEV_0245&SUBSYS_103C8CBA&REV_1000\5&339e38f6&0&0001DIF_000A&UIF_0000, Unplugged, None, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 0 - 0

Enumerate database Content Decryption Modules Information Key System Name: Video Robustness, Audio Robustness, Capabilities, Clear Lead, HDCP 2.2 Compatible org.w3.clearkey: {"persistent":"Optional","distinctive":"NotAllowed","sessionType":"[Temporary]","codec":{"decodingAndDecrypting":["h264(all)"],"decryptingOnly":["aac(all)","flac(all)","opus(all)","vp9(all)","av1(all)","vorbis(all)","vp8(all)"]}}, No, No com.widevine.alpha: SW_SECURE_CRYPTO,SW_SECURE_DECODE, SW_SECURE_CRYPTO, {"persistent":"Optional","distinctive":"NotAllowed","sessionType":"[Temporary]","codec":{"decodingAndDecrypting":["h264(all)","vp9(all)","av1(all)","vp8(all)"],"decryptingOnly":["aac(all)","flac(all)","opus(all)","vorbis(all)"]}}, Yes, No com.microsoft.playready.recommendation: 2000, 2000, {"persistent":"Required","distinctive":"Required","sessionType":"[Temporary,PersistentLicense]","codec":{"decodingAndDecrypting":["h264(cenc/cbcs)","vp9(cenc/cbcs)","hevc(cenc/cbcs)","av1(cenc/cbcs)","aac(cenc)"]}}, No, Yes com.microsoft.playready.recommendation.3000: {"persistent":"Required","distinctive":"Required","sessionType":"[]","codec":{"decodingAndDecrypting":[]}}, No, Yes com.microsoft.playready.recommendation.3000.clearlead: {"persistent":"Required","distinctive":"Required","sessionType":"[]","codec":{"decodingAndDecrypting":[]}}, Yes, Yes

Environment Variables

MOZ_APP_RESTART: 1 MOZ_CRASHREPORTER_DATA_DIRECTORY: C:\Users\dmkgg\AppData\Roaming\Mozilla\Firefox\Crash Reports MOZ_CRASHREPORTER_EVENTS_DIRECTORY: C:\Users\dmkgg\AppData\Roaming\Mozilla\Firefox\Profiles\lay3jjf9.default-release-1753891792139\crashes\events MOZ_CRASHREPORTER_PING_DIRECTORY: C:\Users\dmkgg\AppData\Roaming\Mozilla\Firefox\Pending Pings MOZ_CRASHREPORTER_RESTART_ARG_2: -url MOZ_CRASHREPORTER_RESTART_ARG_3: C:\Users\dmkgg\OneDrive\Documents\AAA_Factchecking\2025.07.28_due_(AB-JeremyMartin)_1025-enews-al-monarch-migration\Fact Checking Fillable Format.pdf MOZ_SKELETON_UI_RESTARTING: 1

Remote Settings

Status: OK Not working

Status: 2025-07-30T16:10:42.000Z

Status: "1753890866164"

Status: Status Date Infos successWed Jul 30 2025 11:54:26 GMT-0400 (Eastern Daylight Time){} Date: success Infos: Wed Jul 30 2025 11:54:26 GMT-0400 (Eastern Daylight Time) {}

Status: success Date: Wed Jul 30 2025 11:54:26 GMT-0400 (Eastern Daylight Time) Infos: {}

Remote Experiments

Address Bar Update Rollout v1: rollout AI Chatbot Page Summarization MVP: treatment-d-no-badges Long term holdback 2025H1 Growth Desktop: holdback

Important Modified Preferences

browser.contentblocking.category: strict browser.download.useDownloadDir: false browser.link.open_newwindow: 1 browser.search.region: US browser.sessionstore.upgradeBackup.latestBuildID: 20250717180000 browser.startup.homepage: chrome://browser/content/blanktab.html browser.startup.homepage_override.buildID: 20250717180000 browser.startup.homepage_override.mstone: 141.0 browser.tabs.groups.smart.enabled: true browser.urlbar.placeholderName: Google browser.urlbar.quicksuggest.migrationVersion: 2 doh-rollout.doneFirstRun: true doh-rollout.home-region: US dom.disable_open_during_load: false dom.forms.autocomplete.formautofill: true extensions.formautofill.creditCards.reauth.optout: MDIEEPgAAAAAAAAAAAAAAAAAAAEwFAYIKoZIhvcNAwcECNjAVRq+CJj4BAghbD3KPRBr8A== extensions.lastAppVersion: 141.0 media.autoplay.default: 5 media.gmp-gmpopenh264.abi: x86_64-msvc-x64 media.gmp-gmpopenh264.hashValue: 77991110c1d195616e936d27151d02e4d957be6c20a4f3b3511567868b5ddffc6abbfdc668d17672f5d681f12b20237c7905f9b0daaa6d71dcdac4b3 media.gmp-gmpopenh264.lastDownload: 1753891833 media.gmp-gmpopenh264.lastInstallStart: 1753891833 media.gmp-gmpopenh264.lastUpdate: 1753891833 media.gmp-gmpopenh264.version: 2.6.0 media.gmp-manager.buildID: 20250717180000 media.gmp-manager.lastCheck: 1753891833 media.gmp-widevinecdm.abi: x86_64-msvc-x64 media.gmp-widevinecdm.hashValue: d94483deaae98bf9212699f1ab0bd913f6151a63e65ebc1ea644ab98d5e3ebd74ecaa08f70aca31e11a5d2c64d1504b723817af35bbe9d7b05c758dd media.gmp-widevinecdm.lastDownload: 1753891833 media.gmp-widevinecdm.lastInstallStart: 1753891833 media.gmp-widevinecdm.lastUpdate: 1753891834 media.gmp-widevinecdm.version: 4.10.2891.0 media.gmp.storage.version.observed: 1 media.hardware-video-decoding.failed: false network.cookie.CHIPS.lastMigrateDatabase: 2 network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation: true privacy.annotate_channels.strict_list.enabled: true privacy.bounceTrackingProtection.hasMigratedUserActivationData: true privacy.bounceTrackingProtection.mode: 1 privacy.clearOnShutdown_v2.browsingHistoryAndDownloads: false privacy.clearOnShutdown_v2.formdata: true privacy.fingerprintingProtection: true privacy.query_stripping.enabled: true privacy.query_stripping.enabled.pbmode: true privacy.sanitize.pending: [{"id":"shutdown","itemsToClear":["cache","formdata","cookiesAndStorage"],"options":{}}] privacy.sanitize.sanitizeOnShutdown: true privacy.trackingprotection.consentmanager.skip.pbmode.enabled: false privacy.trackingprotection.emailtracking.enabled: true privacy.trackingprotection.enabled: true privacy.trackingprotection.socialtracking.enabled: true privacy.userContext.enabled: true services.sync.declinedEngines: services.sync.engine.addresses: true services.sync.engine.addresses.available: true services.sync.engine.creditcards: true services.sync.engine.prefs.modified: false services.sync.lastPing: 1753891816 services.sync.lastSync: Wed Jul 30 2025 12:11:09 GMT-0400 (Eastern Daylight Time) signon.management.page.os-auth.optout: MDIEEPgAAAAAAAAAAAAAAAAAAAEwFAYIKoZIhvcNAwcECAjgpyR5b102BAh2HDrjTj9Rog==

Important Locked Preferences

fission.autostart.session: true media.utility-process.enabled: true

Places Database

Entity: sqlite_schema Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 30.2 Sequentiality (%): 14.4

Entity: moz_origins Count: 4742 Size (KiB): 256 Size (%): 0.4 Efficiency (%): 73.4 Sequentiality (%): 14.4

Entity: sqlite_autoindex_moz_origins_1 Count: - Size (KiB): 224 Size (%): 0.3 Efficiency (%): 72.8 Sequentiality (%): 14.4

Entity: moz_places Count: 88584 Size (KiB): 34464 Size (%): 49.3 Efficiency (%): 77.8 Sequentiality (%): 14.4

Entity: moz_places_extra Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: moz_places_url_hashindex Count: - Size (KiB): 1376 Size (%): 2 Efficiency (%): 92.5 Sequentiality (%): 14.4

Entity: moz_places_hostindex Count: - Size (KiB): 2624 Size (%): 3.8 Efficiency (%): 84.8 Sequentiality (%): 14.4

Entity: moz_places_visitcount Count: - Size (KiB): 992 Size (%): 1.4 Efficiency (%): 77.8 Sequentiality (%): 14.4

Entity: moz_places_frecencyindex Count: - Size (KiB): 992 Size (%): 1.4 Efficiency (%): 85 Sequentiality (%): 14.4

Entity: moz_places_lastvisitdateindex Count: - Size (KiB): 1920 Size (%): 2.7 Efficiency (%): 75.2 Sequentiality (%): 14.4

Entity: moz_places_guid_uniqueindex Count: - Size (KiB): 1984 Size (%): 2.8 Efficiency (%): 90.3 Sequentiality (%): 14.4

Entity: moz_places_originidindex Count: - Size (KiB): 1056 Size (%): 1.5 Efficiency (%): 83.7 Sequentiality (%): 14.4

Entity: moz_places_altfrecencyindex Count: - Size (KiB): 992 Size (%): 1.4 Efficiency (%): 75.9 Sequentiality (%): 14.4

Entity: moz_historyvisits Count: 167812 Size (KiB): 4864 Size (%): 7 Efficiency (%): 93 Sequentiality (%): 14.4

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Entity: moz_historyvisits_placedateindex Count: - Size (KiB): 3808 Size (%): 5.5 Efficiency (%): 87.5 Sequentiality (%): 14.4

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Entity: moz_inputhistory Count: 50 Size (KiB): 32 Size (%): 0 Efficiency (%): 4.5 Sequentiality (%): 14.4

Entity: sqlite_autoindex_moz_inputhistory_1 Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 3.3 Sequentiality (%): 14.4

Entity: moz_bookmarks Count: 579 Size (KiB): 128 Size (%): 0.2 Efficiency (%): 41.3 Sequentiality (%): 14.4

Entity: moz_bookmarks_deleted Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

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Entity: moz_bookmarks_itemindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 19.5 Sequentiality (%): 14.4

Entity: moz_bookmarks_parentindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 19.8 Sequentiality (%): 14.4

Entity: moz_bookmarks_itemlastmodifiedindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 33.4 Sequentiality (%): 14.4

Entity: moz_bookmarks_dateaddedindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 27.9 Sequentiality (%): 14.4

Entity: moz_bookmarks_guid_uniqueindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 35 Sequentiality (%): 14.4

Entity: moz_keywords Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: sqlite_autoindex_moz_keywords_1 Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: sqlite_sequence Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0.1 Sequentiality (%): 14.4

Entity: moz_keywords_placepostdata_uniqueindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: moz_anno_attributes Count: 3 Size (KiB): 32 Size (%): 0 Efficiency (%): 0.3 Sequentiality (%): 14.4

Entity: sqlite_autoindex_moz_anno_attributes_1 Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0.3 Sequentiality (%): 14.4

Entity: moz_annos Count: 330 Size (KiB): 96 Size (%): 0.1 Efficiency (%): 35.7 Sequentiality (%): 14.4

Entity: moz_annos_placeattributeindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 12.6 Sequentiality (%): 14.4

Entity: moz_items_annos Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: moz_items_annos_itemattributeindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: moz_meta Count: 6 Size (KiB): 32 Size (%): 0 Efficiency (%): 1.2 Sequentiality (%): 14.4

Entity: moz_places_metadata Count: 90649 Size (KiB): 4672 Size (%): 6.7 Efficiency (%): 72.4 Sequentiality (%): 14.4

Entity: moz_places_metadata_placecreated_uniqueindex Count: - Size (KiB): 1888 Size (%): 2.7 Efficiency (%): 85.6 Sequentiality (%): 14.4

Entity: moz_places_metadata_referrerindex Count: - Size (KiB): 1024 Size (%): 1.5 Efficiency (%): 84.8 Sequentiality (%): 14.4

Entity: moz_places_metadata_search_queries Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: sqlite_autoindex_moz_places_metadata_search_queries_1 Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: moz_previews_tombstones Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: sqlite_stat1 Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 4.2 Sequentiality (%): 14.4

Entity: moz_newtab_story_click Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Entity: moz_newtab_story_impression Count: 0 Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

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Entity: moz_newtab_story_impression_newtab_impression_timestampindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

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Entity: moz_newtab_shortcuts_interaction_placeidindex Count: - Size (KiB): 32 Size (%): 0 Efficiency (%): 0 Sequentiality (%): 14.4

Accessibility

Activated: false Prevent Accessibility: 0 Accessibility Instantiator:

Library Versions

NSPR Expected minimum version: 4.36 Version in use: 4.36

NSS Expected minimum version: 3.113.1 Version in use: 3.113.1

NSSSMIME Expected minimum version: 3.113.1 Version in use: 3.113.1

NSSSSL Expected minimum version: 3.113.1 Version in use: 3.113.1

NSSUTIL Expected minimum version: 3.113.1 Version in use: 3.113.1

Sandbox

Content Process Sandbox Level: 8 Effective Content Process Sandbox Level: 8 Win32k Lockdown State for Content Process: Win32k Lockdown enabled -- default value is true GPU Process Sandbox Level: 1

Startup Cache

Disk Cache Path: C:\Users\dmkgg\AppData\Local\Mozilla\Firefox\Profiles\lay3jjf9.default-release-1753891792139\startupCache\startupCache.8.little Ignore Disk Cache: false Found Disk Cache on Init: false Wrote to Disk Cache: false

Internationalization & Localization

Application Settings Requested Locales: ["en-US"] Available Locales: ["en-US"] App Locales: ["en-US"] Regional Preferences: ["en-US"] Default Locale: "en-US" Operating System System Locales: ["en-US"] Regional Preferences: ["en-US"]

Remote Debugging (Chromium Protocol)

Accepting Connections: false URL:

Printing

Modified print settings

Content Analysis (DLP)

Active: false Connected to Agent: Agent Path: Agent Failed Signature Verification: Request Count:

As a long time (more than 15 years) user of Thunderbird application, I regularly update this app on my computers (5 of them) running on MacOS, some on MacOS 10.15.7 and other on 14.7.6. Before the last update to TB 140.0.1esr, I was using the version 128.11.1esr on my computers without any issue. But, following the installation of TB 140.0.1esr on one of my computers running MacOS 10.15.7, I notice a strange behavior of the application: (1) the application was running slower than the previous version, (2) when I try to close the application, I receive the system message that this "application quit unexpectedly", (3) the diagnostic test of my system shows that the CPU time is used at about 35% by the TB application. I had to completely remove the TB 140.0.1esr and painfully reinstall the previous version (128.11.1esr), due to the corrupted user profile! Now the TB 128.11.1esr runs normally and required about 0.3% of CPU time. So it will be imperative to look upon the compatibility of TB 140.0.1esr with MacOS 10.15.7. I did not try to install this update to my Mac M2 machines, following my issues with Mac intel machines. Thanks for any reply, G.Roy