Does anybody know how to install security certificates. I am trying to connect to my schools wifi but need to install the certificate and when I click install it doesnt.

I have also failed installing security certificates on my N9. Certificate manager finds the packages, ask correctly for password for import, then gives me a dialog for use settings. I can not see "Done" button, only back arrow. And I still get "Install" button under the certificate screen, though my certificates show in the installed list.
Anyway when I navigate the browser to web site that uses my certificates I always get notification for it being untrusted(although this is my bank, using Verisgn) and I am neither prompted to select my personal certificate nor it is used automatically. So I can not perform online banking operations with default browser.
The exact same certificates I was able to import in Mozilla and I am using them without any problems. But I prefer the default browser or Opera than the sluggish Mozilla...
Anyone managed to solve this?

Zlatko, how did you managed to install the certificate in Firefox?
I also installed my online bank's certificate in the system but it is not working. The default browser does not work.

installing Mozilla from store(12.01), and then incept the package from i use nighly version , and then downgrading again to fennec from store, its make Mozilla lil bit faster, cmiiw, sorry for OT,

@bastyani
I downloaded a plugin for FF called Cert Manager v.1.3, using it I am able to install certificates.
To be honest I do not remember where I downloaded it from.

Thanks for the reply Zlatko! I also have installed the same plugin but when asked to select the certificate only the standard options (Documents/Images/Videos/Music) shows and I cannot select my certificate. How did you managed to select it?

@bastyani
Place the certificate in some of these folders, after changing the extension to .txt so file browser can see it. It will import just fine.

I already tried that but no luck. I used Filebox to place the certificate in /home/user/MyDocs/Documents/ and renamed the file to .txt but that file does not show in the Documents application or when browsing with Firefox for the certificate. Is this the right folder? Or is there another documents folder? Do I have to be in the developer mode? Thanks for help!

@bastyani
Just tried it - yes, folder is correct. Just to confirm: if you have cert file e.g. bastyani.pem you rename it to bastyani.txt? You must for sure see it in your Documents app. Try using search option in Documents app.

Very strange.... I have the "certificate.txt" file in /home/user/MyDocs/Documents/ and if I run the Documents app the only thing I see is "FOSS_notices" file which is comes bundled with the phone. Also the search function does not return any results.
Any ideas?