1423579 - firefox: mozalloc_abort(char const*)(): firefox killed by SIGSEGV [...]/nsDebugImpl.cpp:461

Status: RESOLVED WORKSFORME

(Firefox :: Untriaged, defect)

Description

[Germano Massullo (Thetra)]

Attachment: full_backtrace.txt

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20171113102334

Steps to reproduce:

Version-Release number of selected component:
firefox-57.0-2.fc27

Additional info:
reporter:       libreport-2.9.3
backtrace_rating: 4
cmdline:        /usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser -intPrefs 5:50|6:-1|18:0|28:1000|34:40|35:5|36:0|45:128|46:10000|51:0|53:400|54:1|55:0|56:0|61:0|62:120|63:120|98:2|99:1|114:5000|124:0|126:0|137:10000|162:24|163:32768|165:0|166:0|174:5|178:1048576|179:100|180:5000|182:600|183:4|184:1|193:3|206:60000| -boolPrefs 1:0|2:0|4:0|26:1|27:1|30:0|33:1|37:1|38:0|39:0|40:0|43:1|44:1|47:0|48:0|49:0|50:0|52:0|57:1|58:1|59:0|60:1|64:1|65:1|66:0|67:1|68:1|69:0|70:1|73:0|74:0|77:1|78:1|82:1|83:1|84:1|85:0|86:0|88:0|89:0|90:1|91:0|92:1|95:1|97:0|100:1|101:0|108:0|113:0|116:1|118:1|119:1|121:1|125:0|127:0|129:0|131:1|132:1|138:1|139:0|140:1|142:0|153:1|160:0|161:0|164:1|167:1|169:1|171:1|172:0|177:0|181:1|186:0|187:1|188:0|189:1|190:0|191:1|192:1|195:1|198:0|199:0|200:1|201:1|202:0|203:1|204:1|205:1|207:0|208:0|210:0|218:1|219:1|220:0|221:0|222:0| -stringPrefs 3:7;default|96:0;|141:3;1.0|158:332;  |159:4;high| -schedulerPrefs 0001,2 -greomni /usr/lib64/firefox/omni.ja -appomni /usr/lib64/firefox/browser/omni.ja -appdir /usr/lib64/firefox/browser 2766 tab
crash_function: mozalloc_abort(char const*)
executable:     /usr/lib64/firefox/firefox
journald_cursor: s=abc05e953bec404a9bfe25276bc2d86b;i=2e254f7;b=8acdc26082d847cb97318cf1ebb86a6b;m=adac6a7f;t=55fac04d70e8f;x=4783b1a8ec8c68a8
kernel:         4.13.16-302.fc27.x86_64
mountinfo:      
open_fds:       
rootdir:        /
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 0 (10 frames)
 #0 mozalloc_abort(char const*) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/memory/mozalloc/mozalloc_abort.cpp:33
 #1 Abort at /usr/src/debug/firefox-57.0-2.fc27.x86_64/xpcom/base/nsDebugImpl.cpp:461
 #2 NS_DebugBreak(uint32_t, char const*, char const*, char const*, int32_t) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/xpcom/base/nsDebugImpl.cpp:417
 #3 mozilla::ipc::FatalError(char const*, char const*, bool) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/ipc/glue/ProtocolUtils.cpp:306
 #4 mozilla::dom::ContentChild::FatalErrorIfNotUsingGPUProcess(char const*, char const*, int) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/dom/ipc/ContentChild.cpp:3397
 #5 mozilla::layers::PCompositorBridgeChild::SendPLayerTransactionConstructor(mozilla::layers::PLayerTransactionChild*, nsTArray<mozilla::layers::LayersBackend> const&, unsigned long const&) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/objdir/ipc/ipdl/PCompositorBridgeChild.cpp:956
 #6 mozilla::layers::PCompositorBridgeChild::SendPLayerTransactionConstructor(nsTArray<mozilla::layers::LayersBackend> const&, unsigned long const&) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/objdir/ipc/ipdl/PCompositorBridgeChild.cpp:916
 #7 mozilla::dom::TabChild::InitRenderingState(mozilla::layers::TextureFactoryIdentifier const&, unsigned long const&, mozilla::layers::CompositorOptions const&, mozilla::layout::PRenderFrameChild*) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/dom/ipc/TabChild.cpp:2832
 #8 mozilla::dom::TabChild::RecvInitRendering(mozilla::layers::TextureFactoryIdentifier const&, unsigned long const&, mozilla::layers::CompositorOptions const&, bool const&, mozilla::layout::PRenderFrameChild*) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/dom/ipc/TabChild.cpp:1276
 #9 mozilla::dom::PBrowserChild::OnMessageReceived(IPC::Message const&) at /usr/src/debug/firefox-57.0-2.fc27.x86_64/objdir/ipc/ipdl/PBrowserChild.cpp:3005


Fedora bugreport: https://bugzilla.redhat.com/show_bug.cgi?id=1522820

Comment 1

[Cosmin Muntean [:cmuntean], Ecosystem QA]

I am not sure if I understand how to reproduce the issue. Did you ran the "/usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser -intPrefs" command in terminal and you get the provided errors?

Can you please provide more information in order to reproduce the issue?

Comment 2

[Germano Massullo (Thetra)]

(In reply to Cosmin Muntean [:CosminMCG], Desktop Engineering QA from comment #1)
> I am not sure if I understand how to reproduce the issue. Did you ran the
> "/usr/lib64/firefox/firefox -contentproc -childID 2 -isForBrowser -intPrefs"
> command in terminal
No, I simply runned my desktop icon that points to /usr/share/applications/firefox.desktop
which content is

[Desktop Entry]
Version=1.0
Name=Firefox
GenericName=Web Browser
GenericName[ca]=Navegador web
GenericName[cs]=Webový prohlížeč
GenericName[es]=Navegador web
GenericName[fa]=مرورگر اینترنتی
GenericName[fi]=WWW-selain
GenericName[fr]=Navigateur Web
GenericName[hu]=Webböngésző
GenericName[it]=Browser Web
GenericName[ja]=ウェブ・ブラウザ
GenericName[ko]=웹 브라우저
GenericName[nb]=Nettleser
GenericName[nl]=Webbrowser
GenericName[nn]=Nettlesar
GenericName[no]=Nettleser
GenericName[pl]=Przeglądarka WWW
GenericName[pt]=Navegador Web
GenericName[pt_BR]=Navegador Web
GenericName[sk]=Internetový prehliadač
GenericName[sv]=Webbläsare
Comment=Browse the Web
Comment[ca]=Navegueu per el web
Comment[cs]=Prohlížení stránek World Wide Webu
Comment[de]=Im Internet surfen
Comment[es]=Navegue por la web
Comment[fa]=صفحات شبکه جهانی اینترنت را مرور نمایید
Comment[fi]=Selaa Internetin WWW-sivuja
Comment[fr]=Navigue sur Internet
Comment[hu]=A világháló böngészése
Comment[it]=Esplora il web
Comment[ja]=ウェブを閲覧します
Comment[ko]=웹을 돌아 다닙니다
Comment[nb]=Surf på nettet
Comment[nl]=Verken het internet
Comment[nn]=Surf på nettet
Comment[no]=Surf på nettet
Comment[pl]=Przeglądanie stron WWW 
Comment[pt]=Navegue na Internet
Comment[pt_BR]=Navegue na Internet
Comment[sk]=Prehliadanie internetu
Comment[sv]=Surfa på webben
Exec=firefox %u
Icon=firefox
Terminal=false
Type=Application
MimeType=text/html;text/xml;application/xhtml+xml;application/vnd.mozilla.xul+xml;text/mml;x-scheme-handler/http;x-scheme-handler/https;
StartupNotify=true
Categories=Network;WebBrowser;
Keywords=web;browser;internet;
Actions=new-window;new-private-window;

X-Desktop-File-Install-Version=0.23

[Desktop Action new-window]
Name=Open a New Window
Name[ach]=Dirica manyen
Name[af]=Nuwe venster
Name[an]=Nueva finestra
Name[ar]=نافذة جديدة
Name[as]=নতুন উইন্ডো
Name[ast]=Ventana nueva
Name[az]=Yeni Pəncərə
Name[be]=Новае акно
Name[bg]=Нов прозорец
Name[bn-BD]=নতুন উইন্ডো (N)
Name[bn-IN]=নতুন উইন্ডো
Name[br]=Prenestr nevez
Name[brx]=गोदान उइन्ड'(N)
Name[bs]=Novi prozor
Name[ca]=Finestra nova
Name[cak]=K'ak'a' tzuwäch
Name[cs]=Nové okno
Name[cy]=Ffenestr Newydd
Name[da]=Nyt vindue
Name[de]=Neues Fenster
Name[dsb]=Nowe wokno
Name[el]=Νέο παράθυρο
Name[en-GB]=New Window
Name[en-US]=New Window
Name[en-ZA]=New Window
Name[eo]=Nova fenestro
Name[es-AR]=Nueva ventana
Name[es-CL]=Nueva ventana
Name[es-ES]=Nueva ventana
Name[es-MX]=Nueva ventana
Name[et]=Uus aken
Name[eu]=Leiho berria
Name[fa]=پنجره جدید
Name[ff]=Henorde Hesere
Name[fi]=Uusi ikkuna
Name[fr]=Nouvelle fenêtre
Name[fy-NL]=Nij finster
Name[ga-IE]=Fuinneog Nua
Name[gd]=Uinneag ùr
Name[gl]=Nova xanela
Name[gn]=Ovetã pyahu
Name[gu-IN]=નવી વિન્ડો
Name[he]=חלון חדש
Name[hi-IN]=नया विंडो
Name[hr]=Novi prozor
Name[hsb]=Nowe wokno
Name[hu]=Új ablak
Name[hy-AM]=Նոր Պատուհան
Name[id]=Jendela Baru
Name[is]=Nýr gluggi
Name[it]=Nuova finestra
Name[ja]=新しいウィンドウ
Name[ja-JP-mac]=新規ウインドウ
Name[ka]=ახალი ფანჯარა
Name[kk]=Жаңа терезе
Name[km]=បង្អួចថ្មី
Name[kn]=ಹೊಸ ಕಿಟಕಿ
Name[ko]=새 창
Name[kok]=नवें जनेल
Name[ks]=نئئ وِنڈو
Name[lij]=Neuvo barcon
Name[lo]=ຫນ້າຕ່າງໃຫມ່
Name[lt]=Naujas langas
Name[ltg]=Jauns lūgs
Name[lv]=Jauns logs
Name[mai]=नव विंडो
Name[mk]=Нов прозорец
Name[ml]=പുതിയ ജാലകം
Name[mr]=नवीन पटल
Name[ms]=Tetingkap Baru
Name[my]=ဝင်းဒိုးအသစ်
Name[nb-NO]=Nytt vindu
Name[ne-NP]=नयाँ सञ्झ्याल
Name[nl]=Nieuw venster
Name[nn-NO]=Nytt vindauge
Name[or]=ନୂତନ ୱିଣ୍ଡୋ
Name[pa-IN]=ਨਵੀਂ ਵਿੰਡੋ
Name[pl]=Nowe okno
Name[pt-BR]=Nova janela
Name[pt-PT]=Nova janela
Name[rm]=Nova fanestra
Name[ro]=Fereastră nouă
Name[ru]=Новое окно
Name[sat]=नावा विंडो (N)
Name[si]=නව කවුළුවක්
Name[sk]=Nové okno
Name[sl]=Novo okno
Name[son]=Zanfun taaga
Name[sq]=Dritare e Re
Name[sr]=Нови прозор
Name[sv-SE]=Nytt fönster
Name[ta]=புதிய சாளரம்
Name[te]=కొత్త విండో
Name[th]=หน้าต่างใหม่
Name[tr]=Yeni pencere
Name[tsz]=Eraatarakua jimpani
Name[uk]=Нове вікно
Name[ur]=نیا دریچہ
Name[uz]=Yangi oyna
Name[vi]=Cửa sổ mới
Name[wo]=Palanteer bu bees
Name[xh]=Ifestile entsha
Name[zh-CN]=新建窗口
Name[zh-TW]=開新視窗


Exec=firefox %u

[Desktop Action new-private-window]
Name=Open a New Private Window
Name[ach]=Dirica manyen me mung
Name[af]=Nuwe privaatvenster
Name[an]=Nueva finestra privada
Name[ar]=نافذة خاصة جديدة
Name[as]=নতুন ব্যক্তিগত উইন্ডো
Name[ast]=Ventana privada nueva
Name[az]=Yeni Məxfi Pəncərə
Name[be]=Новае акно адасаблення
Name[bg]=Нов прозорец за поверително сърфиране
Name[bn-BD]=নতুন ব্যক্তিগত উইন্ডো
Name[bn-IN]=নতুন ব্যক্তিগত উইন্ডো
Name[br]=Prenestr merdeiñ prevez nevez
Name[brx]=गोदान प्राइभेट उइन्ड'
Name[bs]=Novi privatni prozor
Name[ca]=Finestra privada nova
Name[cak]=K'ak'a' ichinan tzuwäch
Name[cs]=Nové anonymní okno
Name[cy]=Ffenestr Breifat Newydd
Name[da]=Nyt privat vindue
Name[de]=Neues privates Fenster
Name[dsb]=Nowe priwatne wokno
Name[el]=Νέο παράθυρο ιδιωτικής περιήγησης
Name[en-GB]=New Private Window
Name[en-US]=New Private Window
Name[en-ZA]=New Private Window
Name[eo]=Nova privata fenestro
Name[es-AR]=Nueva ventana privada
Name[es-CL]=Nueva ventana privada
Name[es-ES]=Nueva ventana privada
Name[es-MX]=Nueva ventana privada
Name[et]=Uus privaatne aken
Name[eu]=Leiho pribatu berria
Name[fa]=پنجره ناشناس جدید
Name[ff]=Henorde Suturo Hesere
Name[fi]=Uusi yksityinen ikkuna
Name[fr]=Nouvelle fenêtre de navigation privée
Name[fy-NL]=Nij priveefinster
Name[ga-IE]=Fuinneog Nua Phríobháideach
Name[gd]=Uinneag phrìobhaideach ùr
Name[gl]=Nova xanela privada
Name[gn]=Ovetã ñemi pyahu
Name[gu-IN]=નવી ખાનગી વિન્ડો
Name[he]=חלון פרטי חדש
Name[hi-IN]=नयी निजी विंडो
Name[hr]=Novi privatni prozor
Name[hsb]=Nowe priwatne wokno
Name[hu]=Új privát ablak
Name[hy-AM]=Սկսել Գաղտնի դիտարկում
Name[id]=Jendela Mode Pribadi Baru
Name[is]=Nýr huliðsgluggi
Name[it]=Nuova finestra anonima
Name[ja]=新しいプライベートウィンドウ
Name[ja-JP-mac]=新規プライベートウインドウ
Name[ka]=ახალი პირადი ფანჯარა
Name[kk]=Жаңа жекелік терезе
Name[km]=បង្អួចឯកជនថ្មី
Name[kn]=ಹೊಸ ಖಾಸಗಿ ಕಿಟಕಿ
Name[ko]=새 사생활 보호 모드
Name[kok]=नवो खाजगी विंडो
Name[ks]=نْو پرایوٹ وینڈو&
Name[lij]=Neuvo barcon privou
Name[lo]=ເປີດຫນ້າຕ່າງສວນຕົວຂື້ນມາໃຫມ່
Name[lt]=Naujas privataus naršymo langas
Name[ltg]=Jauns privatais lūgs
Name[lv]=Jauns privātais logs
Name[mai]=नया निज विंडो (W)
Name[mk]=Нов приватен прозорец
Name[ml]=പുതിയ സ്വകാര്യ ജാലകം
Name[mr]=नवीन वैयक्तिक पटल
Name[ms]=Tetingkap Persendirian Baharu
Name[my]=New Private Window
Name[nb-NO]=Nytt privat vindu
Name[ne-NP]=नयाँ निजी सञ्झ्याल
Name[nl]=Nieuw privévenster
Name[nn-NO]=Nytt privat vindauge
Name[or]=ନୂତନ ବ୍ୟକ୍ତିଗତ ୱିଣ୍ଡୋ
Name[pa-IN]=ਨਵੀਂ ਪ੍ਰਾਈਵੇਟ ਵਿੰਡੋ
Name[pl]=Nowe okno prywatne
Name[pt-BR]=Nova janela privativa
Name[pt-PT]=Nova janela privada
Name[rm]=Nova fanestra privata
Name[ro]=Fereastră privată nouă
Name[ru]=Новое приватное окно
Name[sat]=नावा निजेराक् विंडो (W )
Name[si]=නව පුද්ගලික කවුළුව (W)
Name[sk]=Nové okno v režime Súkromné prehliadanie
Name[sl]=Novo zasebno okno
Name[son]=Sutura zanfun taaga
Name[sq]=Dritare e Re Private
Name[sr]=Нови приватан прозор
Name[sv-SE]=Nytt privat fönster
Name[ta]=புதிய தனிப்பட்ட சாளரம்
Name[te]=కొత్త ఆంతరంగిక విండో
Name[th]=หน้าต่างส่วนตัวใหม่
Name[tr]=Yeni gizli pencere
Name[tsz]=Juchiiti eraatarakua jimpani
Name[uk]=Приватне вікно
Name[ur]=نیا نجی دریچہ
Name[uz]=Yangi maxfiy oyna
Name[vi]=Cửa sổ riêng tư mới
Name[wo]=Panlanteeru biir bu bees
Name[xh]=Ifestile yangasese entsha
Name[zh-CN]=新建隐私浏览窗口
Name[zh-TW]=新增隱私視窗
Exec=firefox --private-window %u

Comment 3

[Cosmin Muntean [:cmuntean], Ecosystem QA]

User Agent  Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0
Firefox: 57.0, Build ID  20171113102334

I just tested this issue on Fedora 27 using Firefox 57.0.2 and I haven't manage to reproduce the issue. The Firefox starts without any problems if it's run from desktop.
Germano, after running Firefox from desktop icon, the browser starts or you get the provided errors and the browser is not opened? Can you please attach a screen recording of the issue?
Also, did you encountered this issue after updating Firefox 56 to 57? 

If you don't mind, can you please retest this issue using a new Firefox clean profile and report back the results? To create a new profile, just run Firefox in terminal using this command: "firefox -no-remote". Here is a link that can help you: https://goo.gl/azwcF4

Comment 4

[Germano Massullo (Thetra)]

(In reply to Cosmin Muntean [:CosminMCG], Desktop Engineering QA from comment #3)
> Germano, after running Firefox from desktop icon, the browser starts or you
> get the provided errors and the browser is not opened? Can you please attach
> a screen recording of the issue?

With Firefox 57 I get often two kind of crashes:
1) I start Firefox, it starts opening the windows of previous session, then after 1, 2 seconds Firefox terminates after a crash. If I restart Firefox again, I get a "resume session" window, therefore I select "resume session" and I can use Firefox normally;
2) During Firefox usage, I have a crash of (I assume) one of the other child processes.

In both cases I managed to retrieve useful infos thanks to the ABRT, the Fedora automatic crash reporter tool.

As far I remember this bugreport should be about crash n.2, instead crash n.1 bugreport is https://bugzilla.mozilla.org/show_bug.cgi?id=1420483

> Also, did you encountered this issue after updating Firefox 56 to 57? 

Yes

> If you don't mind, can you please retest this issue using a new Firefox
> clean profile and report back the results? To create a new profile, just run
> Firefox in terminal using this command: "firefox -no-remote". Here is a link
> that can help you: https://goo.gl/azwcF4

No crashes with a new profile, but since an empty session has very few stuff that could trigger a crash, compared to my very heavy user session, I think it would be impossible to try triggering the crash in this way.

Comment 5

[Cosmin Muntean [:cmuntean], Ecosystem QA]

Thanks for clarifying this.

Since is not reproducible using a new clean profile is pretty hard to find out what exactly causes the issue. Can be some custom settings, add-on or large data.
 
Germano, do you have any crashes displayed on "about:crashes" page. If yes, can you please provide the crash report?

Comment 6

[Germano Massullo (Thetra)]

Attachment: about:crashes screenshot

(In reply to Cosmin Muntean [:CosminMCG], Desktop Engineering QA from comment #5)
> Germano, do you have any crashes displayed on "about:crashes" page. If yes,
> can you please provide the crash report?

Argh, I cannot open about:crashes , see attached screenshot

Comment 7

[Cosmin Muntean [:cmuntean], Ecosystem QA]

That's very strange. 
Can you please try this using a new Firefox profile? The same crashes should be displayed in "about:crashes" even on a new profile.

Comment 8

[Germano Massullo (Thetra)]

(In reply to Cosmin Muntean [:CosminMCG], Desktop Engineering QA from comment #7)
> That's very strange. 
> Can you please try this using a new Firefox profile? The same crashes should
> be displayed in "about:crashes" even on a new profile.

Same behaviour with a brand new profile

Comment 9

[Cosmin Muntean [:cmuntean], Ecosystem QA]

Indeed, the "about:crashes" page is not working on Fedora Firefox 57 version, but works on Firefox official builds.

If you don't mind, can you download the official Firefox build from here: https://ftp.mozilla.org/pub/firefox/releases/57.0.2/linux-x86_64/en-US/ and test if the initial issue is reproducible on this build.
If the issue is reproducible navigate to "about:crashes" (should work on this build) and see if there are some crash reports.

Comment 10

[Germano Massullo (Thetra)]

https://crash-stats.mozilla.com/report/index/b3bd31f0-0d77-4165-9ad7-402ea0171128
https://crash-stats.mozilla.com/report/index/3a0cfe21-30f0-46eb-9bd6-029301171124
https://crash-stats.mozilla.com/report/index/bp-37b4aab9-e33c-4f56-9df0-31fd21171122
https://crash-stats.mozilla.com/report/index/1f92eb2e-faf4-441a-a425-d80211171116
https://crash-stats.mozilla.com/report/index/55650f24-0f6b-4557-be0a-2ad210171116
https://crash-stats.mozilla.com/report/index/b708b66b-f8a3-48e6-86af-b846a1171116
https://crash-stats.mozilla.com/report/index/bp-a0c5d831-c1d1-426d-9d0d-a76391171031

There are also various Unsubmitted Crash Reports. Unfortunately there are no crashreports on December date

Comment 11

[Cosmin Muntean [:cmuntean], Ecosystem QA]

I am not sure if the provided crashes are related to this issue. 
Germano, the issue is still reproducible on the Firefox build from comment 9?

Comment 12

[Cosmin Muntean [:cmuntean], Ecosystem QA]

Probably this is an issue related to Fedora Firefox builds and not with Firefox official binary builds. 
Germano, you can confirm this by testing this issue using the provided official build in comment 9. 

I think we should wait for a response on your logged issue on Red Had Bugzilla to see their opinion: https://bugzilla.redhat.com/show_bug.cgi?id=1522820.

Comment 13

[Germano Massullo (Thetra)]

(In reply to Cosmin Muntean [:CosminMCG], Desktop Engineering QA from comment #11)
> I am not sure if the provided crashes are related to this issue. 
> Germano, the issue is still reproducible on the Firefox build from comment 9?

As far I remember I haven't seen crashes in the upstream Firefox build. I have just tried to run 10 times the upstream Firefox build without experiencing crashes.

(In reply to Cosmin Muntean [:CosminMCG], Desktop Engineering QA from comment #12)
> Probably this is an issue related to Fedora Firefox builds and not with
> Firefox official binary builds. 

I am not 100% sure, but I have the same feeling
 
> I think we should wait for a response on your logged issue on Red Had
> Bugzilla to see their opinion:
> https://bugzilla.redhat.com/show_bug.cgi?id=1522820.

Bugreport assignee is [e-mail] and I guess we cannot expect a quick response by it. Probably I better contact maintainers directly -> https://src.fedoraproject.org/rpms/firefox

Comment 14

[Cosmin Muntean [:cmuntean], Ecosystem QA]

Since this issue is not reproducible using the upstream Firefox build (see comment 15), I will close this issue as Resolved - Worksforme. So probably only the Fedora Firefox builds are affected.

@Germano if you can still reproduce it on latest official versions of Firefox, feel free to reopen the issue and provide more information.

Comment 15

[Germano Massullo (Thetra)]

More infos: crash is very likely to be caused by
https://bugzilla.mozilla.org/show_bug.cgi?id=1453735
which causes ulimit to be overwhelmed.
When I started using the workaround
$ ulimit -n 10000
$ firefox
I no longer had a single Firefox crash