This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please ck that this directory has no read/write restrictions and your hard disk is not full or close to full.

  • 1 resposta
  • 3 have this problem
  • 1 view
  • Last reply by cor-el

more options

This is an Alert when I open the browser. It isn't functioning at all. I've cleared ample space on my C drive, but I cannot find the application's profile directory to check the read/write restrictions.

This is an Alert when I open the browser. It isn't functioning at all. I've cleared ample space on my C drive, but I cannot find the application's profile directory to check the read/write restrictions.

All Replies (1)

more options