On startup I get a warning "Could not initialize the application' security component...", click OK Firefox starts but I cannot navigate to any URL but home.

Click the Firefox 4 icon. A window opens with the warning:
"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"
(There are no read/write restrictions on my Applications folder and plenty of room on the hard drive.)
Click OK and Firefox opens at the home page, but I cannot navigate to any other URL or link. I had the same behavior when I tried FireFox 3)

First, use a specific [[Managing profiles|profile]] for Firefox 4.0 Beta and keep your current one for Firefox 3.6 to prevent interferences between both versions.
Then, see [[Could not initialize the browser security component]].

Similar Messages

Everytime I use firefox to connect to the internet I get an alert saying that firefox could not initialize the applications security component. What does this mean and how do I fix it?

When I use firefox to get on to the web I get the following message everytime: "Alert: Could not initialize the applications security component. The most likely cause is problems with files in your applications pforfile 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 feactures." Once I click the "OK button" at the bottom of the alert box firefox starts but does not act right. For instance it will not let me look for software updates. When I click on "Check for Updates" from the "Help" drop down menu I get a message stating: "There were problems checking for, downloading, or installing this update. Firefox could not be updated because: Update XML file malformed (200). You can update firefox manually by visiting this link and downloading the latest version."

The following support articles should help:
* https://support.mozilla.com/kb/Could+not+initialize+the+browser+security+component
* https://support.mozilla.com/kb/AUS+Update+XML+File+Malformed+200

When I open Firefox in my laptop, I get an alert message that says that "It could not initialize the applications security component. The most likely cause is problems with files in your application's profile directory, etc"

This morning it was working fine, but I tried to put 2 addons, "adblock" and "Forcastfox Weather" .
I have both of this addons in my Desktop as well as in Ubuntu. The problem is in Windows XP

This link shows things to check - https://support.mozilla.com/kb/Could+not+initialize+the+browser+security+component

When I try to open Firefox I am getting a box opening up Stating Alert. could not initialize the applications security component. Please advise as to how to correct this.

Cannot open Firefox

This issue can be caused by a problem with the file c:\windows\system32\dwmapi.dll
The file dwmapi.dll is a Vista file and should not be present in Windows XP.
http://support.microsoft.com/kb/969155 - On a Windows XP-based computer with Family Safety installed, you receive an error message: “The procedure entry point IsThreadDesktopComposited could not be located in the dynamic link library USER32.dll”

Error message: Count not initialize the applications security component.....

I have been receiving the following error message when trying to access Firefox:
Could not initialize the applications security component. The most likely cause is problems with files in your applications 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 our continue to use this session you might see incorrect application behavior when accessing security features.
Firefox will not open any site. I am using a MacBook. The hard drive is not full. I recently had to start using a vpn to get remote access to my desktop at work. Then it wouldn't load so I had to install something to trick it into accepting the vpn. I do not recall what this was as I got this from a person at our helpdesk at work. I hadn't had any trouble for several days, then all of a sudden, Firefox won't open anything, no websites, no email, etc. I have been using Safari as so far it seems to be working. I do not wish to continue to use Safari and for portions of my job, I need to download things and using Firefox is the only browser that works with the software program I am using.
Can anyone help me with this problem?
Thank you very much.

This link shows things to check - https://support.mozilla.com/kb/Could+not+initialize+the+browser+security+component

KEEP GETTING FOLLOWING MESSAGE Could not initialize the application's security component.

everytime click on firefox icon to use browser message box appears 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.

The following link shows how to resolve this - https://support.mozilla.com/kb/Could+not+initialize+the+browser+security+component

When I open it, I get this message: Could not initialize the application's security component [remainder deleted for space - see "details"]

Full error message:
"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."

This link shows how to deal with this issue - https://support.mozilla.com/kb/Could+not+initialize+the+browser+security+component

"Could not initialize the application's security component" already erased mozilla directory containing profiles and the other in x86, problem persists!

This has just happened. But I have erased the mozilla directories containing the profiles and as well the both mozilla directories in program files x86. Yet when Firefoz is reinstalled, problem recurs.
Receive again the message "Could not initialize the application security component."
Have looked at the fixes available. Those appear not to work.
Anyone else with ideas? Maybe some hidden files that I can search for on my computer, and erase?
I'm suspecting I need really a thorough erase of anything connected with Firefox, to solve this issues. Thought though I had found everything.
Not relishing the prospect of erasing the hard-disc to fix this, though that has 100% probability of working.
My computer is running Wista 64.

Rename secmod.db (secmod.db.old) in the Firefox Profile Folder in case there is a problem with the file.
Firefox will create new files.
* https://support.mozilla.org/kb/Could+not+initialize+the+browser+security+component
You can use this button to go to the Firefox profile folder:
*Help > Troubleshooting Information > Profile Directory: Open Containing Folder

Could not initialize the application's security ... Tried renaming cert8.db and secmod.db. Profile has r/w access. Still get message. Can only run as admin

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.
Above error messa4bite occurs whenever I star Firefox without admin priv. Checked the profile directory listed in troubleshoot info -- has r/w access for system, admin and self Tried renaming cert8 and secmod as suggested in one forum response. Problem persists.\
My computer runs Win 7 Home Premium 64bit

If deleting or otherwise removing the cert8.db and secmod.db file doesn't help then try a new profile.
*https://support.mozilla.org/kb/Could+not+initialize+the+browser+security+component
Create a new profile as a test to check if your current profile is causing the problems.
See "Creating a profile":
*https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

What should I do about the alert "Could not initialize the application's security component...." Firefox no responding.

When I open up firefox I get the alert:
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.
When I click OK I get my home page (google), but nothing works: no web sites will open. I have downloaded the new version of firefox and carried out a defraggle without success.

This solution worked for me:
http://support.mozilla.com/en-US/kb/Could+not+initialize+the+browser+security+component
The step that worked for me was to locate and delete the cert8.db file.

Could not initialize the application's security component when clicking on a hyberlink from LotusNotes, default browser Firefox

I have Lotus Notes 8.5 installed on Windows 7 computer.
Firefox 4.0.1 works fine.
But when I change FF as default browser and launch a hyperlink from My mail client I get an error "Could not initialize the application's security component. The most likely cause is problems with files in your browser'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 browser and fix the problem. If you continue to use this browser session, you might see incorrect browser behavior when accessing security features."
After this error I can open tabs but no website will work.
But if I close Firefox and reopen it will work.
When Firefox is running, if I click the hyberlink from my mail client, it launches without error message and works fine.
Gave Write access to profile folder. replaced cert8.db etc, but it is not helpful.
I installed Firefox 4 - same.
Installed Firefox 5 beta - same.
Installed Firefox 3.6.17 - error message is there but Firefox keeps working after launch.

In Mac OS X v10.7, the $HOME/Library folder is a hidden folder.
Open Finder and use one of these:
* Go > Go To Folder (Shift-Command-G) and in the dialog type: ~/Library
* Open the "Go" menu and hold down the Option key to make the Library appear
You can also use this command in a Terminal window to remove the hidden flag.
* Mac HD > Applications > Utilities > Terminal
* chflags nohidden ~/Library

Could not initialize the application's security component

Hello,
I installed Firefox 3, I did check for update, but 4.0.1 when running show me this message:
"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 have Uninstalling 3 times Firefox but I see the same error and now I can't install Firefox, this is the question... My harddisk is ok, also and my permissions, there is not any directory of Firefox...
I have removed any directory of Firefox(also personal data)
I have Windows XP Professional... I run the Google Chrome 11.0.696.68,
After one week, I haven't any answer...
I would like to write me first: How do I fully uninstall and then: how to install Firefox;
I wait for your answer...
thanks a lot...

Rename secmod.db (secmod.db.old) in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder] in case there is a problem with the file.<br />
You may have to rename cert8.db (cert8.db.old) as well.<br />
Firefox will create new files. If that works then you can remove the renamed files.
* [[Could not initialize the browser security component]]

I get the following when I try to open fox: "Could not initialize the application's security component. The most likely cause......"

When I try to open Firfox, I get the following error message:
"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."

See:
*https://support.mozilla.com/kb/Could+not+initialize+the+browser+security+component

I'm getting Could not initialize the application's security component, when opening Firefox and I can't bookmark anymore, why?

Here is the message I get when I open Firefox;
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. Plus I can't bookmark anymore.

Rename secmod.db (secmod.db.old) in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder] in case there is a problem with the file.
You may have to rename cert8.db (cert8.db.old) as well.<br />
Firefox will create new files.

I keep getting the following error message: "Could not initialize the application's security component." Firefox then crashes when I try to enter a secure website. Help?

The exact error message is: "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 am on a MacBook and have been using Firefox for years without any problem until now.

Can you access other apps? Can you acess the internet? Can you access applications that use internet besides facebook?
If answer is yes to all of these; contact Facebook.

On startup I get a warning "Could not initialize the application' security component...", click OK Firefox starts but I cannot navigate to any URL but home.

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