Created attachment 413066 [details]
File: backtrace

#2  <signal handler called>
No symbol table info available.
#3  0x00000038cb9329c8 in vtable for RDFXMLDataSourceImpl ()
   from /usr/lib64/xulrunner-1.9.1/libxul.so
No symbol table info available.
#4  0x00000038caf92ab1 in NS_NewRDFXMLDataSource (aResult=0x7fffc0205e28)
    at nsRDFXMLDataSource.cpp:423
        datasource = 0x7fd621735500
        rv = <value optimized out>
#5  0x00000038caf85788 in CreateNewRDFXMLDataSource (
    aOuter=<value optimized out>, aIID=<value optimized out>, aResult=
    0x7fffc0205eb8) at nsRDFModule.cpp:96
        inst = 0x0
        rv = <value optimized out>
#6  0x00000038cb0bff99 in nsComponentManagerImpl::CreateInstance (
    this=<value optimized out>, aClass=<value optimized out>, aDelegate=0x0, 
    aIID=..., aResult=0x7fffc0205eb8) at nsComponentManager.cpp:1601
        entry = <value optimized out>
        factory = 0x7fd62077b840
        rv = <value optimized out>
#7  0x00000038cb0958e0 in nsCreateInstanceByCID::operator() (this=
    0x7fffc0205ed0, aIID=..., aInstancePtr=0x38cb12988c)
    at nsComponentManagerUtils.cpp:199
        status = 0
#8  0x00000038cb09503e in nsCOMPtr_base::assign_from_helper (this=
    0x7fffc0205fa0, helper=..., iid=...) at nsCOMPtr.cpp:150
        newRawPtr = 0x0
#9  0x00000038caf90110 in operator= (this=0x7fd62c1c0e00, 
    aURI=<value optimized out>, aBlock=1, aDataSource=0x7fffc02062c8)
    at ../../../dist/include/xpcom/nsCOMPtr.h:707
No locals.
#10 RDFServiceImpl::GetDataSource (this=0x7fd62c1c0e00, 
    aURI=<value optimized out>, aBlock=1, aDataSource=0x7fffc02062c8)
    at nsRDFService.cpp:1471
        remote = {<nsCOMPtr_base> = {mRawPtr = 
    0x7fd6217e07c0}, <No data fields>}
        rv = <value optimized out>
        spec = {<nsFixedCString> = {<nsCString> = {<nsACString_internal> = {
                mData = 
    0x7fd621898358 "file:///home/sasan/.mozilla/firefox/scq7vq9n.default/extensions.rdf", mLength = 67, mFlags = 65541}, <No data fields>}, mFixedCapacity = 
    63, mFixedBuf = 0x7fffc0206040 ""}, mStorage = 
    "\000\000\000\000\000\000\000\000\333\303@\000\000\000\000\000D\000\000\000\000\000\000\000\333\303@\000\000\000\000\000 \000\000\000\000\000\000\000@@/,\326\177\000\000`\216u \326\177\000\000\314\261\016\004\000\000\000"}
        ds = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}
#11 0x00000038cb0d1071 in NS_InvokeByIndex_P (that=0x7fd62c1c0e00, 
    methodIndex=16, paramCount=2, params=<value optimized out>)
    at xptcinvoke_x86_64_linux.cpp:208
        nr_stack = <value optimized out>
        gpregs = {0, 140557644336992, 140736416735944, 0, 140557662641728, 
    140557662226660}
        d0 = <value optimized out>
        d5 = <value optimized out>
        result = <value optimized out>
        nr_gpr = 3
        d1 = <value optimized out>
        d6 = <value optimized out>
        nr_fpr = 0
        d2 = <value optimized out>
        d7 = <value optimized out>
        methodAddress = Cannot access memory at address 0x0



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Reporter, was this a one-time event, or reproducible?



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Oh, It is happening alright. I could never use Mozilla again, since then. I even tried to remove the Flash plugin (The one & only plugin that is not in Fedora, and I was using it.) but nothing changed. It still crashes.

Thank you for taking the time to submit this bug report.

We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.

First of all, could we get output of the command, saved in a text file and attached to this bug:

 $ rpm -qa *xulrun* *firefox* *mozilla* *flash* *plugin*

Please also install firefox-debuginfo.

 # debuginfo-install firefox

Then run firefox inside the gdb debugger. Please do the following:

 $ firefox -g

Stuff will appear. Ignore this until you get the gdb command prompt, then do:

 (gdb) run

Now, firefox should start up. Use it and reproduce the crash. When firefox crashes, you should be back to the gdb prompt. Now do:

 (gdb) thread apply all back-trace

More screens of stuff will occur. Copy all of this part to your editor of choice, such as gedit, and save it as an uncompressed file and attach it to this bug report.

We will review this issue again once you've had a chance to attach this information.



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Created attachment 422132 [details]
installed rpms.

output of the following command 
rpm -qa *xulrun* *firefox* *mozilla* *flash* *plugin*

Created attachment 422134 [details]
Output of gdb

output of following:
$ firefox -g
(gdb) set logging on
(gdb) run
(gdb) thread apply all backtrace
(gdb) quit

Passing this on.

This bug has been triaged



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Can you try to run firefox in safe mode? (firefox -safe-mode) and check if it crashes?

(In reply to comment #9)
> Can you try to run firefox in safe mode? (firefox -safe-mode) and check if it
> crashes?    

It didn't come up (as I already mentioned in the bug report description).
However there was an update for firefox and xulrunner some weeks ago which solved this issue. I've totally forgotten about this request.

thank you anyway.

Okay, thanks.