5

When I launch Start Tor Browser.exe it indicates that the circuit is established but then immediately gives the following error message:

Firefox is already running, but not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

This happens even though Firefox is not running. How can I resolve this issue?

Improve this question
1
  • This is also happening to me - I have checked the task manager and there is no "firefox.exe" process running.
    – Tahir Hassan
    Apr 15, 2014 at 14:03

2 Answers 2

Reset to default
5

Whenever I've got that message, it's been because a Firefox process actually was running, even though there was no Firefox window. Since it sounds like you're running Windows, have you tried Ctrl-Alt-Del to open the system manager and looked for a Firefox process? If you find one, try killing it.

Improve this answer
1
  • 1
    Firefox doesn't always shut down cleanly. If you can consistently reproduce this, perhaps you should file a bug?
    – flamsmark
    Dec 10, 2013 at 10:54
3

I had a similar problem, though the firefox process was closed. Additionally if I tried to open TorBrowser parallel to normal Firefox it just opened another (normal) Firefox window. I had installed TorBrowser on C:\Program Files\Tor Browser. Try to extract the Tor Browser Bundle on another partition, on an external harddrive or an USB-stick. This worked in my case.

Improve this answer
3
  • Firefox uses interprocess communication to control the running instance. This mechanism should not depend on where is the firefox executable file. I guess that there must be something different.
    – pabouk - Ukraine stay strong
    Jan 31, 2014 at 10:19
  • I have installed it in my D:\ drive and it seems to be working. Thanks.
    – Tahir Hassan
    Apr 15, 2014 at 14:06
  • 2
    The error message is misleading, it hasn't to do with Firefox running. Because it needs write access to its own folder, Tor browser needs admin privileges when it's installed in Program Files folder. Either install the Tor bundle outside a system folder (such as c:\tools) or run it as Administrator (bad idea).
    – Martin Hansen
    May 15, 2014 at 15:25

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .