Pale Stone is safe to use. It does not request any sensitive permissions.
Risk impact measures the level of extra permissions an extension has access to. A low risk impact
extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like
stealing your password, bypass your security settings, and access your personal data. High risk
impact extensions are not necessarily malicious. However, if they do turn
malicious, they can be very harmful.
Pale Stone may not be trust-worthy. Avoid installing if possible unless you really trust
Risk likelihood measures the probability that a Firefox add-on may turn malicious.
This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons,
the amount of time the Firefox add-on has been around, and other signals about the
Firefox add-on. Our algorithms are not perfect, and are subject to change as we
discover new ways to detect malicious extensions. We recommend that you always exercise caution
when installing a Firefox add-on, especially ones with higher risk impact and/or
higher risk likelihood.
The manifest file declares the requirements and permissions that
a Firefox add-on will have access to. By reviewing the manifest, you may be able
to determine if a Firefox add-on is over-reaching (for example, if an extension
is overriding your new tab page, or search provider, or requesting access to your web activities
without any good reason).