The New Firefox Permissions Manager
You can open the new permissions manager in Firefox by loading about:permissions. Just enter the about page in the location bar and hit the return key afterwards. The screen that shows up should look like this.
The screen that opens up displays the default permissions for all sites accessed in the web browser, and a list of websites and a search form on the left of it. I’m not entirely sure how the list of sites is populated, it seems however that only sites that are visited frequently by the user are included. I will detail how you can set permissions for a specific website if it is not included in that list.
Lets take a look at what the individual permissions allow or deny.
Store Passwords: If your site login can be saved by Firefox. This has no impact on third party log in helpers like Last Pass. It does only affect the default Firefox password manager. This way you can allow or block the storing of passwords on individual sites, or on all sites. Possible Values: Allow OR Block.
Share Location: Firefox supports location-aware browsing. Please note that websites will always be able to detect a computer’s IP address regardless of that setting. If enabled, Firefox will gather additional information and submit them to the site if the site supports it. Possible values: Always Ask OR Block.
Set Cookies: Whether the site or all sites can set cookies. Possible Values: Allow, Session Cookies Only, Block.
Open Pop-up Windows: If a site can open pop-up windows. Sometimes you may encounter a site that you visit regularly that uses pop-ups to display information. You could use the setting to enable pop-ups for that site only, and block pop-ups for all other sites. Possible Values: Allow OR Block.
Maintain Offline Storage: This should not be confused with the web browser cache. Offline storage is used to provide access to data when the browser is in offline mode. You can see if websites have currently stored data in the offline cache by going to Firefox > Tools > Options > Advanced > Network. Possible Values: Allow OR Block.
