By reading the feature set and realising that some of them cannot work without that permission. For example, you can't have a password manager, a CSS style inje

By reading the feature set and realising that some of them cannot work without that permission. For example, you can't have a password manager, a CSS style injector, or an ad-blocker without that access. After taking a quick look at the add-on from the comment above, I bet it's the snapshots feature that requires it.