I am not sure what happened (perhaps an upgrade in FireFox) but the commenting system completely stopped working in FireFox.

The FireFox version is: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv: Gecko/20100914 Firefox/3.6.10 ( .NET CLR 3.5.30729)

The things that don't work

  • Add Comment: Clicking on it does not bring up the textbox to add a comment.
  • Show more comments: Clicking on it does not expand.
  • Cannot upvote comments. Hovering near the comment does not show the clickable upvote comment.

I am also unable to upvote/downvote answers/questions.

I haven't tried posting an answer yet, so don't know if that is not working too (my guess is it will work fine, as this looks like a Javascript issue).

Here is an error shown by the Javascript error console:

Error: vote is not defined
Source File: http://math.stackexchange.com/questions/5617/party-planning-problem
Line: 46

And this is a warning:

Warning: The 'charCode' property of a keyup event should not be used. The value is meaningless.
Source File: http://math.stackexchange.com/questions/5617/party-planning-problem
Line: 0

A refresh does not help.

I didn't try deleting the cached js files, yet.

Strangely enough, on a different computer (different OS version altogether) with the same firefox version, it works: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20100914 Firefox/3.6.10

I suppose it is something local...

  • $\begingroup$ Have you tried doing a shift-reload, which does some cache-clearing without having to dig around in the cache or clear it entirely? $\endgroup$
    – Isaac
    Commented Sep 28, 2010 at 16:06
  • $\begingroup$ I tried shift+reload. Does not seem to work. $\endgroup$
    – Aryabhata
    Commented Sep 28, 2010 at 16:12
  • 1
    $\begingroup$ @Moron: Can you load sstatic.net/js/question.js?v=e24dbefef57d ? $\endgroup$
    – kennytm
    Commented Sep 28, 2010 at 16:41
  • $\begingroup$ @Kenny: I will let you know in about 8-9 hours. I am away from that computer currently. $\endgroup$
    – Aryabhata
    Commented Sep 28, 2010 at 16:54
  • 2
    $\begingroup$ @Kenny: No, I can't load that page using the computer that is giving me problems: Content Encoding Error. "The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression." $\endgroup$
    – Aryabhata
    Commented Sep 29, 2010 at 1:35
  • $\begingroup$ @Moron: Try clearing the cache. $\endgroup$
    – kennytm
    Commented Sep 29, 2010 at 13:58
  • $\begingroup$ @Kenny: Apparently I didn't have to! It works now. Perhaps if you will care to add your comment as an answer, then I can tick that. I suppose this is not just local to me, based on the upvotes to my comment about not being able to load it. $\endgroup$
    – Aryabhata
    Commented Sep 29, 2010 at 14:15

2 Answers 2


Sometimes the browser will cache an invalid Javascript / CSS file. You could try to completely clear the disk cache to force it download the correct version.

For Firefox, see http://kb.mozillazine.org/Clearing_the_cache.


I also had unusual experience with comments today:

Edits to a comment on meta, within the time limit, were denied with the error "you can only edit comments every 5 seconds" (or whatever the allowed frequency), although the time between posting and editing was more than that, and I experimented with longer delays but was denied in all cases.

This is in Firefox 3.6.9 on Mac OS X.


You must log in to answer this question.

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