Changing the internet browser?

[Gentlemenmilk724]

Presently I use Google Chrome which often create problems with activating soft wares. I want to change it to Mozilla Firefox. I tried to make the default browser but the following message pops up

"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."

Please help me in details resolve this problem.

[Boss]

Yes Google Chrome.

[Web]

uninstall Chrome and install Firefox

free tutorials:
http://w3-video.com/Web_Browsers/index.html