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I am trying to run Firefox in cookie-logging mode as described here:

However, that page was last modified 09:10, 7 Feb 2008 - (its May 2012 now) and may or may not be out of date.

I followed the instructions and did not manage to get any results in my log file. Before I try, try and try again I'd like to know where I can find the most up-to-date instructions on how to do this.

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up vote 2 down vote accepted

The page hasn't been modified in 4 years because the instructions haven't changed, either. I have just verified that putting NSPR_LOG_MODULES=cookie:4 in the environment works with Firefox 12.0 on Windows XP.

If it does not work for you, it could be that Firefox is not permitted to write to the log file – try telling Firefox to log everything to a console window instead:

C:\> set NSPR_LOG_MODULES=cookie:4
C:\> set NSPR_LOG_FILE=     (empty value)
C:\> start firefox -console
$ export NSPR_LOG_MODULES=cookie:4
$ firefox -console
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Thanks. Yes you are correct. I tried it again and it worked. I must have done a typo somewere and then I lost confidence in the instructions cos of the warning message at: – JW. May 19 '12 at 9:40

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