here are my reports I removed Sophos. It still crashes. Crash ID: bp-1abf104a-a8ad-4324-a384-7aa882150616 Crash ID: bp-b52fa026-5e83-48cb-874c-36ef72150616

should I send any other Crash IDs

hi, thank you for reporting with your crash id - this seems to be a new startup crash in relation to the malware/phishing protection feature which downloads a list of malicious sites from google shortly after the application is launched. this doesn't seem like it's on mozilla's radar yet, so i've filed a bug report for it.

until this is getting looked at by mozilla's engineers, can you try to disable those features quickly after startup and see if this solves the crashes for the moment?:

• enter about:preferences#security into the address bar
• un-check the options Block reported attack sites and Block reported web forgeries
• close and restart firefox again

Sorry I do not understand that Crash ID signature.

However you have done the right things by testing in Firefox's safemode and apparently by doing a Clean Install involving deleting Firefox Program Files.

• Firefox keeps crashing at startup_try-a-clean-install

That Crash Signature AFAIK may involve Firefox's cache so it would be well worth trying in a newly created additional profile. Use Safemode and with all plugins disabled. Does that prevent crashes ? Or give a different signature ?

• Profile Manager - Create, remove or switch Firefox profiles

Please paste in a couple more crash IDs lets see if the signature varies.

forum notes

• Report bp-6ceb437e-6d86-493e-afa8-35ccf2150617
• Crash Signature: RtlpLowFragHeapFree | RtlFreeHeap | HeapFree | nsUrlClassifierPrefixSet::StoreToFd(mozilla::Scoped<T>&)

update

• Phillip filed related bug 1175454

philipp said

hi, thank you for reporting with your crash id - this seems to be a new startup crash in relation to the malware/phishing protection feature which downloads a list of malicious sites from google shortly after the application is launched. this doesn't seem like it's on mozilla's radar yet, so i've filed a bug report for it. until this is getting looked at by mozilla's engineers, can you try to disable those features quickly after startup and see if this solves the crashes for the moment?:

• enter about:preferences#security into the address bar
• un-check the options Block reported attack sites and Block reported web forgeries
• close and restart firefox again

Disabled it, but Fireox is still crashing

does it make a difference when you clear the currently stored safe browsing list?:

• press windows-key + R and open: %localappdata%\Mozilla\Firefox\Profiles\
• in there go into the *********.default folder and rename the folder named safebrowsing to safebrowsing.bak

No - and I started in Safe Mode Crash ID: bp-47928a0a-73a6-41a4-976b-2feb72150617

hello EBairead, i think yours is a different issue - please follow up with any more information or new crash reports in the thread you've already created about your problem: https://support.mozilla.org/en-US/questions/1067343

thank you!

according to the mozilla engineer looking into that crash, it is most likely caused by malware that is active on a system.

so please run a full scan of your system with different security tools like the free version of malwarebytes, adwcleaner, & kaspersky security scan.

Troubleshoot Firefox issues caused by malware

EBairead said

No - and I started in Safe Mode Crash ID: bp-47928a0a-73a6-41a4-976b-2feb72150617

That is a different signature

However EBairead [said]

Hi I removed Sophos. It still crashes. Crash ID: bp-1abf104a-a8ad-4324-a384-7aa882150616 Crash ID: bp-b52fa026-5e83-48cb-874c-36ef72150616 should I send any more Crash IDs

You are also getting Crash Signature Firefox 38.0.5 Crash Report [@ RtlpLowFragHeapFree | RtlFreeHeap | HeapFree | nsUrlClassifierPrefixSet::StoreToFd(mozilla::Scoped<T>&) ] ( bp-1abf104a-a8ad-4324-a384-7aa882150616 )

So follow both threads and see if you can find any malware.