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.

Avatar for Username

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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Firefox will not connect to internet. My other browsers; Safari and IE both will connect but Firefox is my default! Any solutions?

dpc6950
dpc6950
more options

I get this error message when opening browser, "Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please check that this directory has no read/write restrictions and your hard disk is not full or close to full. It is recommended that you exit the application and fix the problem. If you continue to use this session, you might see incorrect application behaviour when accessing security features."

I get this error message when opening browser, "Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please check that this directory has no read/write restrictions and your hard disk is not full or close to full. It is recommended that you exit the application and fix the problem. If you continue to use this session, you might see incorrect application behaviour when accessing security features."

All Replies (1)

David McRitchie
David McRitchie
more options

Find you profile folder through about:support typed/pasted into the location bar, then click on "Open Containing Folder". That will bring you to your current profile,

  1. go up three directories to the "Mozilla" directory, then
  2. right-click on the "Firefox" directory to bring up properties.
  3. Click on the read-only box so that it is empty and untinted (hidden files should also be empty) and then click on "Apply".
  4. Accept message to "unset" read-only for folder, sub folders, and files.

That should fix any read-only problem with your profile(s) and profiles.ini file.

Read-only would get turned on if you restored files from read-only media such as CD-ROM. Use of XCOPY (on your system) invoked from the command window allows you to copy files without creating problems, as would using a USB drive.