I installed Firefox because IE7 just freezes up and runs really slow. So far
I like it. It runs really fast, but every now and then I try to start it and
get a message saying Firefox is already running and that I need to stop the
program or restart my computer. I was wondering what you think I should or
could do, plus I was just wondering what you think of Firefox.
I’m a big fan of Firefox, and I use it every day. I still occasionally run
into websites that don’t work properly in Firefox, but for the most part I
rarely have to open Internet Explorer for my normal surfing.
But yes, I have run into the scenario that you’ve described. I’m always not sure
what causes it, but I can show you what I do.
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What I’ve seen when Firefox complains that it’s already running is simply
that it is already running, but it doesn’t actually have any windows
open. (One way to force this on purpose is to set a scheduled task that runs
Firefox, and then log out of your computer and stay logged out while that task
runs. At least that’s how it happens to me.)
If you run task manager, or my favorite: process explorer, after getting
this message you’ll probably find that firefox.exe is indeed running:
(In Task Manager you may need to make sure that “Show process from all
users” is selected.)
If you find a Firefox.exe in the process list but don’t see one running on
your desktop, then you can right click on it and click on “End Process” (task
manager) or “Kill Process” (process explorer). That should halt the unexpected
Firefox and allow you to start a new copy that’s visible.
An alternative for the command-line fans out there is the SysInternals
utility called “pskill” which can be
downloaded for free from Microsoft.
any windows open.”
One you have the tool, then in a command shell you can enter the following
That should result in something like this:
v1.10 – Terminates processes on local or remote systems
Copyright (C) 1999-2004 Mark Russinovich
Sysinternals – www.sysinternals.com
Process firefox killed.
If more than one copy of firefox was running, that would be terminated as
well. In fact, any program with “firefox” in it’s name would be killed. And of
course if no such process exists it does nothing.
So rather than looking for and terminating firefox.exe in the task list, you
can just use the command line tool to “kill ’em if you got ’em”.