You mention in system info Crash ID

bp-a56fdfef-9093-480c-9561-7df432110924

That crash id a56fdfef-9093-480c-9561-7df432110924 brings up signature [NS_URIChainHasFlags(nsIURI*, unsigned int, int*)]

There seems a strong posibility this is caused by malware. A particular trojan is known to cause problems for Firefox and other browsers, and is able to crash firefox 6. If you have malware conceivably it is more secure to have the browser crash than have the malware active.

Have a look at is my firefox problem a result of malware

The particular Trojan malware does produce variable crash signatures. but may be detectable with up-to-date AV software or tools. As a Windows user you may find windows provides suitable software free of charge.

You should find firefox 7 and later ( 7 will be released in a few days and is already on the Beta channel) do not crash, however if you do have malware you still need to find and remove it.

Thank you very much. I was able to fix it and I now feel better. I just don't like Chrome as much a Firefox. I'll be sure to upgrade now.

Glad you fixed it, did you identify a particular threat and remove it, if so what was it and what detected it ?

The current culprit is often the one mentioned here: http://www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Trojan%3AWin32%2FSefnit.A

If you mark the thread as solved, whilst you are logged in it may help others who look for a solution.

I downloaded Malwarebytes and did a scan is it said that it found IPH.Trojan.Blueinit.W7 My notepad kept opening the last week with something I didn't understand so now I'm guessing it was this. I'm going to be more careful of what websites I go to and what I click on now.

I do not see many results on a web search for IPH.Trojan.Blueinit. but conceivably it is due to the malware being agile and so names and signatures may vary even for a very closely related or the same Trojan.

Thanks for posting back.

Hi drk8411,

Have you fixed the problem now? Do you have any good recommendation to fix this problem completely? I found out some relevant info just now: http://blog.teesupport.com/pup-bitminer-wont-go-away-how-to-manually-remove-pup-bitminer-completely/

Hi Larry,

Thanks for posting a specific link relating to IPH.Trojan.Blueinit. 

drk8411 posted 2 months ago to say the problem had been fixed. I did surmise earlier that the trojan may be agile, that seems to be confirmed by the page you link to which says :
PUP.BitMiner is a malicious Trojan that often enters into your computer with other malware such as IPH.Trojan.Blueinit Trojan. ...
Note: PUP.BitMiner virus always disguise their names to resemble benign system files to escape the antivirus detection and add more difficulty to manual removal.

I note that the site you linked to apparently provides paid for support, there are many free alternatives when having malware problems, see for instance the-edmeister 's post /questions/900313#answer-280845