Red Hat Bugzilla – Bug 402231
Firefox won't start up without working DNS
Last modified: 2018-04-11 07:39:56 EDT
Description of problem:
Firefox will not start up if there's no DNS server available. But the really bad
thing is that firefox simply will stay in the background without any error. You
have to manually kill the process to get it running again (after fixing the DNS).
This is extremly annoying, not only because of the missing error message, but
also because sometimes I simply don't have a working DNS available and would
like to run firefox with IP addresses, but as it won't start up, this is impossible.
I have never seen this behavior prior to F8.
Version-Release number of selected component (if applicable):
Put an unreachable DNS into /etc/resolv.conf and start firefox (using
networkmanager, haven't checked the traditional setup).
BTW: This happens in safe-mode as well, so it's not the fault of a plugin. So
far I have only encountered this on my notebook (it visits other networks quite
often, my desktop doesn't).
At this point, we're going to only be taking security fixes and major stability
fixes into this release of Fedora. However, we still want to ensure the bug is
fixed in the next version. We'd appreciate if you could test Firefox 3,
available at http://www.mozilla.com/en-US/firefox/all-beta.html or now shipping
as the default in Fedora rawhide and provide feedback as to whether it still
exists so we can file a ticket upstream to try to fix it in Firefox 3 before it
Since there are insufficient details provided in this report for us to
investigate the issue further, and we have not received feedback to the
information we have requested above, we will assume the problem was not
reproducible, or has been fixed in one of the updates we have released for the
Users who have experienced this problem are encouraged to upgrade to the latest
update of their distribution, and if this issue turns out to still be
reproducible in the latest update, please reopen this bug with additional
Closing as INSUFFICIENT_DATA.
[This is a mass-closing request, if you think that this bug shouldn't be closed,
please, reopen with additional information.]