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I had an issue where my browser disappeared. Here are specifics for my installation.

Name Firefox Version 142.0.1 Build ID 20250827004350 Distribution ID raspberrypios User Agent Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0 OS Linux 6.12.62+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.62-1+rpt1~bookworm (2026-01-19)

I relaunched and then restored previous session. After that, I searched open tabs, but when I selected a tab that was reported to be opened,  it was not restored. I went to troubleshooting mode and it worked fine suggesting some issue with an extension.  What, if any logs could I capture to help debug? thanks

Hello,

I've noticed that recently that Firefox seems to repeatedly crash on my Xiaomi phone quite frequently. It's a Xiaomi 15 Pro on HyperOS 3.0.7.0, and here are some of the crash reports:

cde527a0-cc83-48d3-903f-951ad3d8e7e1 java.lang.OutOfMemoryError: Failed to allocate a 113430304 byte allocation with 33554432 free bytes and 97MB until OOM, target footprint 199480736, growth limit 268435456

java.lang.OutOfMemoryError: Failed to allocate a 113430304 byte allocation with 33554432 free bytes and 97MB until OOM, target footprint 199480736, growth limit 268435456

   at java.util.Arrays.copyOf(Arrays.java:3785)
   at java.io.ByteArrayOutputStream.toByteArray(ByteArrayOutputStream.java:211)
   at kotlin.io.ByteStreamsKt.readBytes(IOStreams.kt:24)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invokeSuspend(ImageLoader.kt:70)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invoke(ImageLoader.kt:13)
   at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndspatched(Undispatched.kt:19)
   at kotlinx.coroutines.BuildersKt.withContext(Unknown Source:78)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$load$bitmap$1.invokeSuspend(ImageLoader.kt:53)
   at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9)
   at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:122)
   at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:4)
   at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:3)
   at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:94)
   Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [androidx.compose.ui.platform.MotionDurationScaleImpl@bf8206, androidx.compose.runtime.BroadcastFrameClock@1cc60c7, StandaloneCoroutine{Cancelling}@a6c06f4, AndroidUiDispatcher@ed57e1d]

e0d3fa76-8868-48e4-8d6e-f66671ba8b50 java.lang.OutOfMemoryError: Failed to allocate a 134217744 byte allocation with 33554432 free bytes and 120MB until OOM, target footprint 176034208, growth limit 268435456

java.lang.OutOfMemoryError: Failed to allocate a 134217744 byte allocation with 33554432 free bytes and 120MB until OOM, target footprint 176034208, growth limit 268435456

   at java.util.Arrays.copyOf(Arrays.java:3785)
   at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:120)
   at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:95)
   at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:156)
   at kotlin.io.ByteStreamsKt.copyTo(IOStreams.kt:19)
   at kotlin.io.ByteStreamsKt.readBytes(IOStreams.kt:21)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invokeSuspend(ImageLoader.kt:70)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invoke(ImageLoader.kt:13)
   at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndspatched(Undispatched.kt:19)
   at kotlinx.coroutines.BuildersKt.withContext(Unknown Source:78)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$load$bitmap$1.invokeSuspend(ImageLoader.kt:53)
   at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9)
   at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:122)
   at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:4)
   at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:3)
   at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:94)
   Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [androidx.compose.ui.platform.MotionDurationScaleImpl@f557b89, androidx.compose.runtime.BroadcastFrameClock@7ff878e, StandaloneCoroutine{Cancelling}@8ee2baf, AndroidUiDispatcher@7121bbc]

94125fa2-317a-47de-a689-dc7d3fa5f15e java.lang.OutOfMemoryError: Failed to allocate a 134217744 byte allocation with 31855720 free bytes and 30MB until OOM, target footprint 268435456, growth limit 268435456

java.lang.OutOfMemoryError: Failed to allocate a 134217744 byte allocation with 31855720 free bytes and 30MB until OOM, target footprint 268435456, growth limit 268435456

   at java.util.Arrays.copyOf(Arrays.java:3785)
   at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:120)
   at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:95)
   at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:156)
   at kotlin.io.ByteStreamsKt.copyTo(IOStreams.kt:19)
   at kotlin.io.ByteStreamsKt.readBytes(IOStreams.kt:21)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invokeSuspend(ImageLoader.kt:70)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invoke(ImageLoader.kt:13)
   at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndspatched(Undispatched.kt:19)
   at kotlinx.coroutines.BuildersKt.withContext(Unknown Source:78)
   at mozilla.components.support.images.compose.loader.ImageLoaderKt$load$bitmap$1.invokeSuspend(ImageLoader.kt:53)
   at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9)
   at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:122)
   at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:4)
   at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:3)
   at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:94)
   Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [androidx.compose.ui.platform.MotionDurationScaleImpl@5cc155a, androidx.compose.runtime.BroadcastFrameClock@402b38b, StandaloneCoroutine{Cancelling}@5cfc68, AndroidUiDispatcher@cef5881]

   c31407a8-aa18-4415-839b-a5323a693c3d
   java.lang.OutOfMemoryError: Failed to allocate a 134217744 byte allocation with 57411112 free bytes and 54MB until OOM, target footprint 268435456, growth limit 268435456
   ----
   java.lang.OutOfMemoryError: Failed to allocate a 134217744 byte allocation with 57411112 free bytes and 54MB until OOM, target footprint 268435456, growth limit 268435456
       at java.util.Arrays.copyOf(Arrays.java:3785)
       at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:120)
       at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:95)
       at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:156)
       at kotlin.io.ByteStreamsKt.copyTo(IOStreams.kt:19)
       at kotlin.io.ByteStreamsKt.readBytes(IOStreams.kt:21)
       at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invokeSuspend(ImageLoader.kt:70)
       at mozilla.components.support.images.compose.loader.ImageLoaderKt$fetchAndDecode$2.invoke(ImageLoader.kt:13)
       at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndspatched(Undispatched.kt:19)
       at kotlinx.coroutines.BuildersKt.withContext(Unknown Source:78)
       at mozilla.components.support.images.compose.loader.ImageLoaderKt$load$bitmap$1.invokeSuspend(ImageLoader.kt:53)
       at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9)
       at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:122)
       at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:4)
       at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:3)
       at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:94)
       Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [androidx.compose.ui.platform.MotionDurationScaleImpl@46e4c17, androidx.compose.runtime.BroadcastFrameClock@eef9804, StandaloneCoroutine{Cancelling}@36d21ed, AndroidUiDispatcher@1bd822]

My firefox has been closing while I am away from my computers. I have a few computer running linux (Ubuntu 24.04) and one in mac osx (Big Sur). Usually, I can start firefox and it will remember my tabs which is annoying but still manageable. However, once in a while, (which happened yesterday), all the firefox closed on all the computers and it forgot my tabs when I start firefox again.

I have already set app.update.auto to false on all of the firefox instance prior to this incident to avoid firefox update would close out firefox itself. So if anyone has any idea of what to check to see why firefox keep closing and/or why once in a while it will not remember my tabs, I would really appreciate it.

After Windows installed an update in the middle of the night I can't open Thunderbird and I've tried uninstalling it and reinstalling with success.

It says: Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window.

I've rebooted the PC, shut down the PC, ended the task and still nothing. It seem that Thunderbird didn't shut down correctly and the system still thinks that it's open and running. Anyone know how I can fix this issue?

Thanks,

Gregg

Hello,

I would like to report a potential bug in Mozilla Firefox related to recent updates.

After downloading a PDF file and opening it directly in the browser, the tab crashes. Following this crash, it becomes impossible to open any files (regardless of file type) within the browser — every attempt results in another tab crash. The crash report cannot be reviewed, as the tab fails immediately and can only be closed.

As a temporary workaround, changing the default PDF handler to an external application prevents the issue. However, this is not a viable solution for us, since some of our internal systems require PDFs to open directly in the browser after download.

We have verified that this issue does NOT occur in version 148.0.2 — everything works correctly there. However, after updating to version 149.0, the problem reappears consistently. Firefox also automatically updates after synchronization, making it difficult to remain on a stable version.

According to the release notes, there were changes in PDF handling in recent updates, so this may be related to a technical regression.

Could you please investigate this issue or advise on a proper fix or workaround?

Best regards, Daniel Mazur VanityStyle IT Specialist

I get the message: We're Sorry Firfox had a problem and crashed. We'll try to restore your tabs and windows. To help us diagnose and fix this problem, you can send us a crash report. I sent the crash report multiple times.

I added a screenshot of my MacBook Air info.

The details are: AvailablePhysicalMemory: 1700704256 AvailableSwapMemory: 0 BackgroundTaskMode: 0 BuildID: 20260216153405 CrashTime: 1773448580 DOMFissionEnabled: 0 DOMIPCEnabled: 0 HeadlessMode: 0 InstallTime: 1772203700 LastStartupWasCrash: 1 MacAvailableMemorySysctl: 75 MacMemoryPressure: Normal MacMemoryPressureCriticalTime: Unset MacMemoryPressureNormalTime: 1773448580 MacMemoryPressureSysctl: 1 MacMemoryPressureWarningTime: Unset MozCrashReason: MOZ_CRASH(NS_ERROR_OMNIJAR_OR_DIR_MISSING) ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox PurgeablePhysicalMemory: 248750080 ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 15923 StartupCacheValid: 0 StartupCrash: 1 StartupTime: 1773448579 SubmittedFrom: Client Throttleable: 1 TotalPhysicalMemory: 8589934592 UptimeTS: 1.104864563 Vendor: Mozilla Version: 148.0 This report also contains technical information about the state of the application when it crashed.

Moderator note: This question has been edited to fill the Firefox version field (based on the info submitted).

Program is freezing after a few minutes, even without using, Tried repairing all the folders and everything I could find on google, installed on another laptop, But still the same.

Can you please help me ? Why does my Thunderbird email account keep crashing upon startup ? It comes up everytime and after 1 minute it crashes . I receive email but only if it is that 1 minute time frame . It just started yesterday , 3/23/2026.

Stephanie

I use K9mail on multiple devices since eternity. Since the latest update it crashes on an old Galaxy S10 / Android 8 when fetching images (show remote images) or, it looks like, when the message has images.

It crashes on 80% of mails with image. I can provide you with messages that reliably crash (e.g. newspaper newsletter from nzz.ch) and with only one that works (newspaper newsletter from 20minutes.ch) Plain text and plain HTML text messages seem to work fine.

it works fine on all other [android 12+] devices Re-install the current version did not help re-installing an older version from FDROID worked

Help is apprechiated

I was using TB like normally on windows 11 when it crashed. Now every time i try to open the app it prompts me to send in a crash report, but every time i press "restart thunderbird" a new window with crash report shows up. I have tried writing a comment, checking and unchecking all the boxes and pressing quit thunderbird. But i still get sent into the loop.

I've got constant crashes jn last update Firefox 148.0.2 (Desktop). Often it happens when Google Meets launched in browser and i started switch between tabs or another applications. In Widows logs i found this error: Имя сбойного приложения: firefox.exe, версия: 0.0.0.0, метка времени: 0x00000000 Имя сбойного модуля: unknown, версия: 0.0.0.0, метка времени: 0x00000000 Код исключения: 0xc00000fd Смещение ошибки: 0x00007ffce9d07286 Идентификатор сбойного процесса: 0x0x3F64 Время запуска сбойного приложения: 0x0x1DCB6A7BAE6121F Путь сбойного приложения: C:\Program Files\Mozilla Firefox\firefox.exe Путь сбойного модуля: unknown Идентификатор отчета: 1a851f87-1b94-4270-8d86-a6850200a62b Полное имя сбойного пакета: Код приложения, связанного со сбойным пакетом:

Installed system Windows 11

2 months ago, after an update the programme opens then locks with the cursor being a multicolor rotating wheel. All is locked and the only option is to 'Force Quit" to close the programme down. Can you help ? thank you

I keep getting crashes in Android tablet with the current version. Crash reports keep mentioning something to do with Java. This has been a consistent problem for the last few versions. What gives?????

• OS: Debian (trixie)
• Firefox version: 149.0b3

Firefox suddenly crashes without any displayed error. Attempt to troubleshoot it in "safe mode" doesn't help (it also suddenly crashes.

• When I had redirected following output: "Exiting due to channel error."
• after restart, I launched "about:crashes", but there were no entries

Firefox is CONSTANTLY crashing now and I'm about ready to switch to another browser unless someone can give me a reason to stay.

Moderator note: This question has been edited to clarify OS version (based on crash reports).

I have never deleted so many emails at one time, around 500. Did I exceed the limits of Thunderbird? I cannot log on. Cannot see new emails. I have been on emailsrvr.com and did verify my passwords. Thank You