Quote:Permission Inspector is a new extension for the Firefox web browser that provides details on permissions that the installed Firefox extension requested.

Firefox displays a permissions prompt when users install extensions from the Mozilla Add-ons Store or from elsewhere; the listed permissions are requested explicitly by extensions to extend the available functionality (all extensions share access to certain functions that are permitted by default).

While users may verify permissions during the installation dialog, requested permissions are not listed on Firefox's about:addons page. The page is the management interface for extensions, themes and other components.

I'm not aware of an option to list extension permissions in Firefox. Firefox users can visit the extension's page on Mozilla's Firefox Add-ons Store as they are listed in the sidebar there.

Permission Inspector is a Firefox extension that changes that; it displays all extra permissions that installed extensions require to function. Even better: it lists some permissions that are not listed on Mozilla AMO or during installation of the extension.

Just click on the Permission Inspector button in the Firefox interface to open the local management page.

Full reading: https://www.ghacks.net/2019/01/17/permission-inspector-for-firefox/