If you don't allow the website you're accessing to set cookies, it may become confused and send you in a redirect loop.

Cookies are disabled
Firefox include the option to block cookies globally and on a per-site basis.
  1. At the top of the Firefox windowOn the menu bar
    , click on the
    ToolsFirefoxEdit
    menu, and select
    Options...Preferences...
    .
  2. Click the Privacy icon.
  3. Make sure Accept cookies from sites is check marked.
    • If it is not checked, check mark it.
  4. Click
    Exceptions...
    .
  5. Make sure the site you're trying to access isn't listed.
    • If it is listed, click on its entry, then click
      Remove Site
      .
If you changed any settings, try accessing the website again.

Unexpected cookies

You may have your cookies set a certain way that the site doesn't expect. This could be caused by a bug in the site. Clear your cookies for the site you're trying to access.
  1. At the top of the Firefox windowOn the menu bar
    , click on the
    ToolsFirefoxEdit
    menu, and select
    Options...Preferences...
    .
  2. Click the Privacy icon.
  3. Click
    Show Cookies...
    .
  4. Click on the entry for the site you're trying to access.
    • If there's no entry for the site, the site has not set any cookies. Try the next section.
  5. Click
    Remove Cookie
    or
    Remove Cookies
    .
Now that your cookies have been cleared, try accessing the website again.