Tap here to go to the mobile version of the site.
Your Firefox is out of date and may contain a security risk! Upgrade Firefox

Support Forum

Firefox 3.6.3 has grayed out "clear cookies when firefox closes." Howdo I get this back?


Firefox has grayed out Clear HIstory/cookies when firefox closes. How can I get this ungrayed so I can check the box?

== I loaded firefox 3.6.3 on my new laptop yesterday

Additional System Details

Installed Plug-ins

  • -Default Plug-in
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Shockwave Flash 10.0 r32
  • Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20100401 Firefox/3.6.3

More Information

zzxc 22 solutions 242 answers

Uncheck "Permanent private browsing mode", and the other options will become ungray.

The reason it's grayed out is that you have it set to always start in private browsing mode. This means that cookies are always cleared, so the option below doesn't apply. Hence, to avoid confusion, Firefox grays it out.