Mozilla plans to add a new security feature to Firefox 82 that will prevent automatic downloads files under certain conditions.
The feature will block downloads that start from sandboxed iframes, a technology that usesfrom websites and services to display content such as advertisements or media that are on third-party websites.
Usually sandboxed iframes are not used to start downloads, but most programs are browsing they do not block these downloads.
From Firefox 82 onwards, automatic downloads originating from sandboxed iframes will be blocked by Browser Firefox. Developers can set the “allow-download” parameter to allow these downloads.
Depending on the setting, downloads may be automatically saved to the system downloads folder, but Firefox can be set to display “saved to” whenever a download is started in the browser. This prompt provides an extra layer of protection against unwanted downloads, as it is possible to press the cancel button to stop the download before it reaches the system.
How do you set it up? Open the about: preferences # general internal address in the Firefox address bar, and look down at the downloads section. The setting must be set to "Always ask you where to save files". This setting may not be convenient for you, as a message will appear every time you download a file, but it offers more security.
Firefox 82 will be released on October 20, 2020 according to Mozilla program. The next stable release is Firefox 81 which will be released in September 2020.
