So far, so good....I haven't had any issues with this extension - innovation like this is so important to allow us to take control of our own data. Thanks Mozilla - keep up the great work you're doing.

Edit: It shows the "Installation aborted because the add-on appears to be corrupt." error if you've changed the extensions.allowPrivateBrowsingByDefault toggle in about:config. Now it's working fine.

I am raising my rating because there is a disable button & I don't have to uninstall to shut it off. [So I can still play Facebook games]
Couldn't find one before.

yaxsidi