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  • Archived

Firefox on android fails to start (forced closed immediately)

When I launch the firefox app after installing it from Google Play, it is about to start (homepage appears) but then closes immediately and returns to the home screen. Ev… (read more)

When I launch the firefox app after installing it from Google Play, it is about to start (homepage appears) but then closes immediately and returns to the home screen. Even I haven't set anything in it yet uh...

my phone details: POCO X5 5G, with MIUI EU 14 (android13), rooted

Thanks a lot.

Asked by Johan Lai 11 months ago

Last reply by Johan Lai 11 months ago

  • Archived

Firefox on Motorola really laggy

Frequently crashes without warning, pages lag constantly where scrolling down is impossible, even after the page is refreshed. Creates way too many new tabs (like 50 a da… (read more)

Frequently crashes without warning, pages lag constantly where scrolling down is impossible, even after the page is refreshed. Creates way too many new tabs (like 50 a day) and ads mess up the design of the webpage.

Asked by tm5281520 1 year ago

Last reply by Paul 1 year ago

  • Archived

Microsoft Forms link doesn't open and crashes the app.

Hey there! Below is the crash log I pulled from the Android app, which wasn't letting me open a Microsoft Forms link. Any ideas what's causing the crashes? Thanks in … (read more)

Hey there!


Below is the crash log I pulled from the Android app, which wasn't letting me open a Microsoft Forms link.

Any ideas what's causing the crashes?

Thanks in advance!



85f0a34f-db68-4577-b8a8-3885ca555283 mozilla.appservices.places.uniffi.PlacesApiException$UnexpectedPlacesException: reason=Error executing SQL: Integer -2 out of range at index 12


mozilla.appservices.places.uniffi.PlacesApiException$UnexpectedPlacesException: reason=Error executing SQL: Integer -2 out of range at index 12 at mozilla.appservices.places.uniffi.FfiConverterTypePlacesApiError.read(places.kt:21) at mozilla.appservices.places.uniffi.FfiConverterTypePlacesApiError.read(places.kt:1) at mozilla.appservices.places.uniffi.FfiConverter$DefaultImpls.liftFromRustBuffer(places.kt:14) at mozilla.appservices.places.uniffi.FfiConverterRustBuffer$DefaultImpls.liftFromRustBuffer(places.kt:7) at mozilla.appservices.places.uniffi.FfiConverterTypePlacesApiError.liftFromRustBuffer(places.kt:2) at mozilla.appservices.places.uniffi.FfiConverterTypePlacesApiError.liftFromRustBuffer(places.kt:1) at mozilla.appservices.places.uniffi.FfiConverterRustBuffer$DefaultImpls.lift(places.kt:7) at mozilla.appservices.places.uniffi.FfiConverterTypePlacesApiError.lift(places.kt:3) at mozilla.appservices.places.uniffi.FfiConverterTypePlacesApiError.lift(places.kt:2) at mozilla.appservices.places.uniffi.PlacesApiException$ErrorHandler.lift(places.kt:2) at mozilla.appservices.places.uniffi.PlacesApiException$ErrorHandler.lift(places.kt:1) at mozilla.appservices.places.uniffi.PlacesConnection.applyObservation(places.kt:163) at mozilla.appservices.places.PlacesWriterConnection.noteObservation(PlacesConnection.kt:24) at mozilla.components.browser.storage.sync.PlacesHistoryStorage$recordObservation$2.invokeSuspend(PlacesHistoryStorage.kt:44) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:107) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637) at java.lang.Thread.run(Thread.java:1012) Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@ab9352e, Dispatchers.IO]

Asked by taha.suhail.chaudhry 1 year ago

Last reply by Paul 1 year ago

  • Archived

Firefox on android 12 crashes and hangs device

When using android 12 Firefox on Nokia g60 the browser hangs and locks up phone. Does not happen immediately but after a few mins. https://standingstones.org/viewer.html?… (read more)

When using android 12 Firefox on Nokia g60 the browser hangs and locks up phone. Does not happen immediately but after a few mins. https://standingstones.org/viewer.html?tour=-1

Asked by david_j_hoyle 1 year ago

Last reply by Paul 1 year ago

  • Archived

firefox often crash when clicking the address bar.

Very often when clicming the adress bar (almost always on sites like old.reddit.com, the app just stops responding and I must reopen it. I'd like a solution that won't in… (read more)

Very often when clicming the adress bar (almost always on sites like old.reddit.com, the app just stops responding and I must reopen it. I'd like a solution that won't involve removing all my bookmarks, history and saved data.

Asked by daniel kornis 1 year ago

Last reply by Paul 1 year ago

  • Archived

Pages keep refreshing and app keeps closing

These "crashes" aren't in the Report, so I'm not sure what to do. I've pressed Quit, I've cleared the Cache (twice), and I've deleted and reinstalled the app. Firefox was… (read more)

These "crashes" aren't in the Report, so I'm not sure what to do. I've pressed Quit, I've cleared the Cache (twice), and I've deleted and reinstalled the app. Firefox was working just fine until recently. These crashes only to seemingly happen on YouTube and Tumblr. It closes worse when I have the YouYube in Background Add-on on, but it isn't just because of that. If anyone knows how to fix this, feel free to answer.

Asked by Thirdy 1 year ago

Last reply by Paul 1 year ago

  • Archived

Full screen closes and returns to home screen

I'm having the same issue as previously posted below. I am on a Google pixel 7 pro. "On youtube mobile site or a reddit video, when I click the bottom right button to fu… (read more)

I'm having the same issue as previously posted below. I am on a Google pixel 7 pro.

"On youtube mobile site or a reddit video, when I click the bottom right button to fullscreen the video, a message pops up that says 'entering fullscreen mode' (with a firefox logo on the left of the message) and then firefox closes and I'm at my android home page

This seems to happen when I watch videos in a new instance. If I reopen firefox to the video and then try fullscreen again, it goes full screen no problem. So basically it's annoying and happens when I try to watch any video full screen for the first time.

Is this a known bug? Wasn't an issue on my old phone (I just got the galaxy s23). "

Asked by edanannand 7 months ago

Last reply by edanannand 7 months ago

  • Archived

full screen video

Hi running latest firefox for Android on Pixel6a. Whenever I full screen a video, it minimizes Firefox and I'm back at my phone's home screen. After this happens I'll reo… (read more)

Hi running latest firefox for Android on Pixel6a. Whenever I full screen a video, it minimizes Firefox and I'm back at my phone's home screen. After this happens I'll reopen Firefox and full screen the video it will work properly.

Asked by Kay Cee 9 months ago

Last reply by welchia 9 months ago

  • Archived

I am trying to run mobile-firefox on Android. The tablet as a IMX6QuadPlus processor. I am using this build "fenix-108.2.0-armeabi-v7a.apk" from GitHub

These are the issues I am experiencing: Numbered list item The browsing is slow Numbered list item The rendering is incorrect on some pages with garbled text/dia… (read more)

These are the issues I am experiencing:

  1. Numbered list item The browsing is slow
  2. Numbered list item The rendering is incorrect on some pages with garbled text/diagram
  3. Numbered list item The browser crashes when I click on a link

Asked by Sergie_Subramoney 1 year ago

Last reply by Sergie_Subramoney 1 year ago

  • Archived

keeps crashing when messing with bookmarks

When I finally decided to start organizing my hundreds of bookmarks, I began to experience a crash every 1-2 minutes. I'm opening, editing and moving bookmarks into diffe… (read more)

When I finally decided to start organizing my hundreds of bookmarks, I began to experience a crash every 1-2 minutes. I'm opening, editing and moving bookmarks into different folders, which by itself shouldn't cause frequent crashes. My phone's specs shouldn't be an issue either since I have an s24 ultra. I'm grateful for any replies, and would like to thank you for your time.

Asked by lil sushi 6 months ago

Last reply by Rawan Abdelrahman 6 months ago

Selecting to open the Download section crashes the app

1. Open the Firefox for Android application 2. Either browse around first, download something beforehand, or do it right at the start, go to the 'three dot' menu on the t… (read more)

1. Open the Firefox for Android application 2. Either browse around first, download something beforehand, or do it right at the start, go to the 'three dot' menu on the top right screen and select the 'Downloads' section. 3. The application will freeze without opening the section and after a while will say 'Firefox not responding' before crashing.

Asked by Mpavle 5 months ago

Last reply by Paul 5 months ago

  • Archived

Firefox is buggy and glitchy

Sometimes whenever i use twitter it will crash and stop working everytime i switch a other tab it glitches and stays on the tab i switched from, and it would also black o… (read more)

Sometimes whenever i use twitter it will crash and stop working everytime i switch a other tab it glitches and stays on the tab i switched from, and it would also black out and make the tab unusable.

Asked by illogicalcomix 10 months ago

Last reply by Paul 10 months ago

  • Archived

App crashes when checking downloads

I left a critical review on the Play Store recently at the time of writing this regarding how, for years, the Firefox Android App would crash whenever I try to check the … (read more)

I left a critical review on the Play Store recently at the time of writing this regarding how, for years, the Firefox Android App would crash whenever I try to check the 'Downloads' page. This happened on at least 3 different devices over the years, and still does to this day. Because of this issue, Firefox no longer notifies me the time takes for a download completion in my notifications; only that it's completed once it does.

Asked by jonasan13 1 year ago

Last reply by Paul 1 year ago

  • Solved
  • Archived

Crash on crash reporter

Firefox Android just crashed when opening a bunch of bookmarks and then again every time I wanted to report a crash. I hope someone here can forward this to whoever usual… (read more)

Firefox Android just crashed when opening a bunch of bookmarks and then again every time I wanted to report a crash. I hope someone here can forward this to whoever usually receives the crash reports.

1cb54f1f-11f5-4fa7-9d97-b4bf58d29ac2 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference


java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference at java.lang.String.valueOf(String.java:2924) at java.lang.StringBuilder.append(StringBuilder.java:132) at java.lang.Throwable.printEnclosedStackTrace(Throwable.java:709) at java.lang.Throwable.printStackTrace(Throwable.java:674) at java.lang.Throwable.printStackTrace(Throwable.java:735) at mozilla.components.support.base.ext.ThrowableKt.getStacktraceAsString$default(Throwable.kt:19) at mozilla.components.lib.crash.service.MozillaSocorroService.sendCrashData(MozillaSocorroService.kt:607) at mozilla.components.lib.crash.service.MozillaSocorroService.sendReport$lib_crash_release(MozillaSocorroService.kt:285) at mozilla.components.lib.crash.service.MozillaSocorroService.report(MozillaSocorroService.kt:5) at mozilla.components.lib.crash.CrashReporter$submitReport$2.invokeSuspend(CrashReporter.kt:70) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:112) at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:4) at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:3) at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:96) Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@6aec4f8, Dispatchers.IO]

The original bookmarks crash was this:

300e77b6-00e5-458d-ae84-d1202c866a1b java.lang.NullPointerException

* New Sentry Instance: https://sentry.io/organizations/mozilla/issues/?project=6375561&query=9fd75a9f565c460b91e4977064d87e83

java.lang.NullPointerException at org.mozilla.fenix.library.bookmarks.BookmarkFragment.refreshBookmarks(BookmarkFragment.kt:103) at org.mozilla.fenix.library.bookmarks.BookmarkFragment$refreshBookmarks$1.invokeSuspend(BookmarkFragment.kt:14) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:112) at android.os.Handler.handleCallback(Handler.java:883) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7400) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:491) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935) Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@26f4bf6, Dispatchers.Main]

Asked by Fabian 1 year ago

Answered by Fabian 1 year ago

  • Archived

can't sync and Firefox crashes regularly after last update

Firefox Update 124.2.0 (Build #2016012559), 7a0e399c7b+ GV: 124.0.2-20240401114208 AS: 124.0 Fire HD 10 (11 generation) Build 0029294005124 FireOS 7.3.2.9 Logged into M… (read more)

Firefox Update 124.2.0 (Build #2016012559), 7a0e399c7b+ GV: 124.0.2-20240401114208 AS: 124.0

Fire HD 10 (11 generation) Build 0029294005124 FireOS 7.3.2.9

Logged into Mozilla, Sync now does nothing, "Last synced: never" Also crashes frequently all since last update.

Asked by becyclist-temp 7 months ago

Last reply by Paul 7 months ago

  • Archived

Firefox for Android crashes or freezes after sometime it is put in the background

Listening to audiobooks made me notice this problem, often whilst my phone is turned off and the audiobook is playing in the background on a tab on firefox the audio woul… (read more)

Listening to audiobooks made me notice this problem, often whilst my phone is turned off and the audiobook is playing in the background on a tab on firefox the audio would just stop and i would find either that firefox was still open but unloaded all the tabs, or that it simply crashed. I thought this was a thing that solely happened when playing audio in the background but then i noticed that it is actually a general problem when firefox is kept open in the background. It doesnt happen after a set amount of time, sometimes it happens immediately, sometimes after like 10 minutes that it is kept in the background. How can i fix this? its very annoying.

Asked by emixy06 6 months ago

Last reply by Paul 6 months ago

  • Archived

Playing videos in full screen causes app to close

Just updated to latest version of Firefox for Android (ver 113). When I try to watch a YouTube video in full screen, the app suddenly closes, as if I pressed the home but… (read more)

Just updated to latest version of Firefox for Android (ver 113). When I try to watch a YouTube video in full screen, the app suddenly closes, as if I pressed the home button (note: I say "close" rather than "crash" because when I reopen it, all the pages are still loaded). This doesn't happen every time, but it is annoying. Is there any way to fix this?

Asked by mike.cairns86 1 year ago

Last reply by Paul 1 year ago