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Firefox start up crash on Ubuntu 18.04

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  • 1 has this problem
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  • Last reply by cor-el

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Hi, I currently have the following error message when i start firefox from Terminal in safe mode

~$ firefox/firefox -safe-mode ExceptionHandler::GenerateDump cloned child 2702 ExceptionHandler::SendContinueSignalToChild sent continue signal to child ExceptionHandler::WaitForContinueSignal waiting for continue signal...


I have followed steps in detailed in this link https://support.mozilla.org/en-US/kb/firefox-keeps-crashing-startup

The crash persists:

When I start firefox in safe mode When I uninstall it and install a fresh copy I have also deleted the StartUp cash folders I could find within ~/.mozilla/firefox I not understand how any kind of malware could be on my Linux system, or how to check Here is the Crash report

AdapterDeviceID: 0x0166 AdapterDriverVendor: AdapterDriverVersion: 20.0.8.0 AdapterVendorID: 0x8086 AvailablePageFile: 0 AvailablePhysicalMemory: 436207616 AvailableSwapMemory: 1378377728 AvailableVirtualMemory: 1448677376 BuildID: 20210222142601 CrashTime: 1614970266 DesktopEnvironment: gnome Email: FramePoisonBase: 9223372036600930304 FramePoisonSize: 4096 InstallTime: 1614535573 IsWayland: 0 IsWaylandDRM: 0 MozCrashReason: OOB Notes: Ubuntu 18.04.5 LTSFP(D00-L1000-W00000000-T000) WR? WR- OMTP? OMTP- ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 1 SecondsSinceLastCrash: 863 StartupCrash: 1 StartupTime: 1614970266 TelemetrySessionId: ec417b25-c587-4702-8019-aac1be068d99 ThreadIdNameMapping: 4922:"IPC I/O Parent",4923:"Timer",4924:"Netlink Monitor",4925:"Socket Thread",4926:"Permission",4929:"JS Watchdog",4930:"JS Helper",4932:"JS Helper",4931:"JS Helper",4933:"JS Helper",4934:"BGReadURLs",4935:"Cache2 I/O",4936:"Cookie",4937:"StreamTrans #1",4938:"Worker Launcher",4939:"SoftwareVsyncThread",4940:"Compositor", Throttleable: 1 TotalPageFile: 5408440320 TotalPhysicalMemory: 4029001728 UptimeTS: .32232316 Vendor: Mozilla Version: 86.0

I would love to have some idea of the next steps to get firefox working on my system.

Attached screenshots

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Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" for websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear

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