Plugin better than Firefox's private browsing Rated 4 out of 5 stars

Following the advice from aifol; I installed "Nightly Tester Tools" and forced the compatibility on distrust.
I was able to installed and and although it seems to be installed and function correctly it is not working as it should.
I see errors under the Error Console \ Messages:
"Failed to load XPCOM component: C:\Documents and Settings\fmendez\Application Data\Mozilla\Firefox\Profiles\kp5eufkc.default\extensions\\components\dtIDistrustService.xpt.old"
"Failed to load XPCOM component: C:\Documents and Settings\fmendez\Application Data\Mozilla\Firefox\Profiles\kp5eufkc.default\extensions\{635abd67-4fe9-1b23-4f01-e679fa7484c1}\components\extconfig.js"
On a simple test:
I logged out of a site, then turned on distrust; I logged back into the site and turned off distrust hoping all of my session keys and other files have been deleted.

When I went back to the site, I was still logged onto the site, which means distrust didn't clean my traces for that site.

Great plugin.
I would like to see this plugin available for version 3.5*.
This plugin is far better to use than the built-in "private browsing"
Because you can activate it on and off while browsing without having to restart your browser.