I cannot log in to StackExchange.com or Cooking.StackExchange.com.

I tried Cooking first, using this URL:


When I clicked "Allow," I got

HTTP Error 403 - Forbidden You do not have permission to access the document or program you requested.

So I tried StackExchange.com and had the same problem.

I just tried StackExchange again using IE7 instead Firefox and it worked. FF fail? I have v4.0.1.

  • Try to clear cookies in FF. Maybe they were rotten.
    – user138231
    May 5, 2011 at 21:42
  • @Chichiray - I cleared my cookies and now I can't even login to meta-stack using FF >.X...programmers is broke too. All my stacklogins are busted. suweet... May 5, 2011 at 21:55
  • After searching through some related questions I see I can email [email protected] regarding the issue. So I shall... May 5, 2011 at 22:06
  • Gee, I am so sorry. How do other browsers like FF3, Chrome and Safari behave? You can of course send the mail. Don't forget to mention that you already posted a Q on meta (this one :) ).
    – user138231
    May 5, 2011 at 22:07
  • Jeff on the SO team at [email protected] told me to disable all my browser add-ons. This resolved the issue. I don't know which add-on caused it, but the ones I want to keep don't affect it so I'm good to go. May 6, 2011 at 13:07
  • Can someone tell us what generates this? I have this on Chrome
    – sorin
    Mar 5, 2013 at 11:56

2 Answers 2


According to the OP, this problem was caused by an unspecified Firefox add-on, and is resolved.

Please upvote this answer to get this question off the "unanswered" list.

  • I have the same problem with Chrome, it happens quite often and is very annoying. How can we find the real cause?
    – sorin
    Mar 5, 2013 at 11:55
  • @SorinSbarnea nobody is ever going to see your comment to this old, obscure post. (I only saw it because I got a notification about a comment on a post I wrote.) If you're still having this issue, you're better off posting a brand-new question and linking to this one.
    – Pops
    Mar 5, 2013 at 15:15

I had this problem and disabled my Firefox Add-ons one by one to find it was Vimperator.

This was FF 19.0 on Ubuntu with Vimperator 3.7.

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