Mozilla recently stated on its official website an improvement to the Firefox browser, which will block mixed content web pages from downloading unsafe files by default. According to the official explanation, mixed content means that the web page itself supports the HTTPS protocol, but some of the content in the web page does not support HTTPS and is still downloaded via HTTP. By default, the system will block unsafe file downloads from mixed content web pages. Users can click the padlock to turn off the protection.
Firefox will display a padlock symbol in the web address bar. If there is a red line on the padlock, it is a mixed content webpage; if a warning triangle is displayed on the padlock, it means that the mixed content webpage will not be blocked. Google has introduced a function to block downloads in an insecure environment in the Chrome 86 browser, including the Microsoft Edge browser.
Mozilla stated that it will introduce this feature into the Firefox 92 Firefox browser released on September 7 at the earliest to prevent unsafe downloads.
