Red Hat Bugzilla – Bug 398641
Firefox often crashes
Last modified: 2008-05-27 17:54:30 EDT
Description of problem:
Firefox very often crashes, not completely reproducible.
Version-Release number of selected component (if applicable):
enabled add-ons: firebug, dom inspector and mugshot
Happens regularly, apparently mostly on "complex" pages with flash etc
I know that 3rd party plugins isn't "supported", but to the regular user it will
appear as a fedora problem, and fedora thus should have interest in solving it -
or at least document what the problem is and who to blame.
Created attachment 268311 [details]
example of bugbuddy crash report
Created attachment 269321 [details]
another bugbuddy report - this time with symbols
(firefox-debuginfo-184.108.40.206-1.fc8.i386.rpm isn't available in the yum repo, got
it from koji)
Similar problems are reported on the net, but no solutions:
Sites that crash firefox for me today after upgrade.
John: The links seems to work fine here :-(
Is the crashes reproducible for you?
If so, could you try to find out what trigs it? Some combination of: Could you
try from another (new) user account? Could you try with all your add-ons
disabled? And uninstalled? And with plugins?
I wonder if running under valgrind would help. But judging from for example
there seems to be known leaks not yet fixed in FF2...
Really cannot reproduce neither crash with either URL you proposed. What JVM you
Please try suggestions from comment 5 (and with yum upgrade) and let us know the
Does installing libflassupport helps?
As mentioned above: I have libflashsupport-000-0.1.svn20070904 installed. Don't
know about John Bass. He isn't on the CC list ...
I am sorry, I missed that.
BUT yesterday, with firefox-220.127.116.11, I just got almost-reproducible crashes on
I uninstalled all add-ons and plugins except flash. It still crashed.
I noticed in about:plugins that there were two flash plugins (IIRC 9.0 r8 and
r119), but the only flash plugin I could find in the filesystem was
I uninstalled flash rpm (from adobe) and installed it again, and it still
crashed. (I'm however not 100% sure about this...)
But when I uninstalled libflashsupport and installed it again then things seemed
to start working. And then I ran out of time...
So it might be libflashsupport related anyway ...
To me it looks like something between flash-player and libflashsupport.
Reassigning to the latter.
Created attachment 284761 [details]
"thread apply all bt" from youtube crash
stacktraces shows that crash happens deep inside libflashplayer.so
Mads: Would it be possible for you to get a stacktrace with debugging symbols
installed? If yes, installing debugging information for firefox and
libflashsupport with debuginfo-install from yum-utils might help a lot.
Lubomir: I think the attachment from #12 already has the stacktrace with
debugging symbols you request. Or what am I missing?
I didn't know debuginfo-install - thanks for the tip ;-)
Lubomir: For the last couple of weeks I haven't seen this problem on any of my
machines, so it might have been solved by some update.
Another possibility is that I perhaps for some reason didn't have
nspluginwrapper installed. Coincidence or not: now I have it installed and I
don't see any crashes.
Created attachment 298845 [details]
npviewer.bin bugbuddy report
FWIW bugbuddy pops up with this npviewer.bin crash. The crash can however be
ignored and firefox continues to run. But the crash seems be the same as the
one I got before - something with flash messing something up. But fortunately
the pluginwrapper mitigates the problem.
nspluginwrapper seems to solve the problem for me. So as far as I am concerned
the issue can be closed.
But using nspluginwrapper on i386 just to avoid crashes seems to be abuse.
Someone who knows nspluginwrapper might want to investigate the issue further.