Fix login issues on websites that require a username and password

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If you find that you can't log in to a website that requires a username and password, follow the steps described in this article.

Enable cookies for the website

Make sure that cookies are enabled for the site in question:

  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Select the PrivacyPrivacy & Security panel and go to the History section.

  3. In the drop-down menu next to Firefox will:Firefox will choose Use custom settings for history.
    customhistory38 Fx56Privacy&Security-CustomHistory-new CustomHistory fx57
  4. Make sure Accept cookies from sites is check marked.
  5. Make sure Accept third party cookies is check marked.
  6. Click Exceptions….
  7. Make sure the site you're trying to access isn't listed.
    • If it is listed, click on its entry, then click Remove Site.
  8. Close the about:preferences page. Any changes you've made will automatically be saved.
  1. Click the menu button New Fx Menu Fx57Menu and choose Options.Preferences.
  2. Select the PrivacyPrivacy & Security panel and go to the History section.

  3. In the drop-down menu next to Firefox will:Firefox will choose Use custom settings for history.
    customhistory38 Fx56Privacy&Security-CustomHistory-new CustomHistory fx57
  4. Make sure Accept cookies from sites is check marked.
  5. Make sure Accept third party cookies is set to Always.
    • Disabling third party cookies can cause problems with some websites. Always accept third party cookies to rule it out as a cause for your problem.
  6. Click Exceptions….
  7. Make sure the site you're trying to access isn't listed.
    • If it is listed, click on its entry, then click Remove Site.
  8. Close the about:preferences page. Any changes you've made will automatically be saved.

If you changed any settings, try logging in to the site again.

Clear history for that site

The cookies and temporary data already stored on your computer may be causing the problem. Delete them, then test for your problem:

  1. Click the Library button 57 library icon , click History and then click the Show All History bar at the bottom to open the Library window.Click the menu button New Fx Menu , click History and then click the Show All History bar at the bottom to open the Library window.
  2. At the top right corner, type the name of the website you wish to forget in the Search History field, and press EnterReturn.
  3. In the resulting list, right-clickhold down the Ctrl key while you click on the site you wish to forget, and select Forget About This Site.
    History Win6

    History Mac6

    History Lin6
  4. Close the Library window.

Clear all cookies and the cache

If deleting cookies for the site with the problem did not fix the error, clear all the cookies stored on your computer and clear the Firefox cache:

  1. Click the Library button 57 library icon , click History and select Clear Recent History….
  2. In the Time Range to clear: drop-down, select Everything.
  3. Click the arrow next to Details to display the list of items that can be cleared.
  4. Select both Cookies and Cache.
  5. Click Clear Now.
  1. Click the menu button New Fx Menu , choose History and select Clear Recent History….
  2. In the Time Range to clear: drop-down, select Everything.
  3. Click the arrow next to Details to display the list of items that can be cleared.
  4. Select both Cookies and Cache.
  5. Click Clear Now.

Check Extensions and Plugins

Some extensions can cause problems with logging in to websites, especially extensions associated with certain websites. For example:

Some plugins can also cause problems logging in to websites. See the Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems article for instructions on how to determine whether a plugin is causing your problem.

Security application is blocking cookies

Some Internet security and privacy applications have features that block cookies. Check the documentation that came with your software or visit the software provider's support site, to see if your application includes a cookie control feature and how you can change those settings.

Remove corrupt cookies file

If you can't log in to websites after removing the cookies associated with it, clearing your Firefox cache, and trying with your extensions and plugins disabled, and have checked security software, you may have a corrupt cookies file in your Firefox profile folder.

This will remove all your stored cookies and essentially log you out of all saved sessions on all websites.
  1. Open your profile folder:

    Click the menu button New Fx Menu , click help Help-29 Click the menu button Fx57menu , click Help and select Troubleshooting Information. The Troubleshooting Information tab will open.

    • Under the Application Basics section, click on Show FolderOpen FolderShow in FinderOpen Directory. A window with your profile filesfolder will open.
    Note: If you are unable to open or use Firefox, follow the instructions in Finding your profile without opening Firefox.

  2. Click the menu button New Fx Menu and then click ExitQuit Close 29 .

    Click the Firefox menu Fx57Menu , then click Exit. Click the Firefox menu at the top of the screen, then click Quit Firefox.Click the Firefox menu Fx57Menu , then click Quit.

  3. Delete the cookies.sqlite file and any cookies.sqlite-journal files.
  4. Restart Firefox.




Includes information from Websites report cookies are disabled (mozillaZine KB)

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