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

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

Cannot use my Common Access Card (CAC) to login to https://www.us.army.mil

  • 3 biyano
  • 10 eza na bankokoso oyo
  • 4 views
  • Eyano yasuka ya Chief Geek

dale.ruebel
dale.ruebel
more options

Mozilla Firefox will not recognize my CAC certificates. I am using ActivClient Agent to read my card and it shows all of my certificates but when I get into Firefox I cannot log in with my CAC to any of the sites. I don't have this problem with IE.

Mozilla Firefox will not recognize my CAC certificates. I am using ActivClient Agent to read my card and it shows all of my certificates but when I get into Firefox I cannot log in with my CAC to any of the sites. I don't have this problem with IE.

All Replies (3)

Chief Geek
Chief Geek
more options

Have you "taught" Firefox how to use the CAC? Look at http://militarycac.com/firefox.htm for instructions.

CW3 Michael J. Danberry

dale.ruebel
dale.ruebel Nkolo motuna
more options

I tried this out and got an error message that said unable to load module. Logged on as administrator and had a CAC in the computer that was registering in ActivClient.

Chief Geek
Chief Geek
more options

Unfortunuately, it does not always work. This is the problem I used to have. I am not sure what actually ended up fixing the problem. It may have been a reinstall of ActivClient, or of the computers' operating system. 

 I used to, and will continue to recommend for CAC use, to use Internet Explorer.  At least you don't have to teach it how to use it like Firefox.