Red Hat Bugzilla – Bug 158192
firefox fails to open file:// url when already running
Last modified: 2018-04-11 04:36:52 EDT
Description of problem:
With a firefox running on machine A, and remotely logged into machine B
with display redirected to machine A, the command (on machine B)
"firefox file:///somefile" fails with the error popup
"The file /somefile cannot be found. Please check the location and try again."
The cause is that the firefox on machine B checks whether firefox is already
running, and answers that question affirmatively - that is, it finds the firefox
on machine A. Now it forwards requests to this already running firefox, but of
course, files on B are not the same as files on A.
This is a bug - conceivably a security risk.
I fixed it for myself with
--- /usr/bin/firefox-orig 2004-10-20 09:41:37.000000000 +0200
+++ /usr/bin/firefox 2005-05-19 15:11:50.143956840 +0200
@@ -204,6 +204,7 @@
+ file://*) ;;
*) USE_EXIST=1 ;;
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Fedora Core 3 is now maintained by the Fedora Legacy project for security
updates only. If this problem is a security issue, please reopen and
reassign to the Fedora Legacy product. If it is not a security issue and
hasn't been resolved in the current FC5 updates or in the FC6 test
release, reopen and change the version to match.
Distribution against which this bug was reported is no longer supported; could
you please reproduce this with the updated version of the currently supported
distribution (Fedora Core 6, or Fedora 7, or Rawhide)? If this issue turns out
to still be reproducible, please let us know in this bug report. If after a
month's time we have not heard back from you, we will have to close this bug as
Setting status to NEEDINFO, and awaiting information from the reporter.
Thanks in advance.
I do not currently use a version of FC, but if someone mails me a copy of the
shell script /usr/bin/firefox, it will be very easy to check whether it still
has the same bug in the handling of ALREADY_RUNNING and USE_EXIST.
Created attachment 160311 [details]
shell script running firefox
What do you think?
Precisely the same bug as before.
The script says
# If there's a command line argument but it doesn't begin with a -
# it's probably a url. Try to send it to a running instance.
but forgets that that running instance may be on a different machine,
namely on the machine that $DISPLAY point to.
Of course a file:// url will have a different meaning on a different machine.
So, either file:// urls have to be excepted, or the logic must first figure out
whether "already running" means running on the same host.
We just updated the Firefox version in Fedora/development from 2.0 to a 3.0
pre-release version, which improves performance, memory usage, and fixes many
bugs and crashes.
Closing as CANTFIX since we aren't fixing bugs filed against 2.0 now that 3.0 is
in. If this bug is still present in rawhide using a Firefox 3.0 version, please
re-open this bug.
Thanks and Happy Holidays