Windows Background Intelligent Transfer Service (BITS) responsible for downloading Windows Updates is going to download Firefox updates in the background even when the browser is not running or closed in upcoming Firefox release.
Mozilla to use BITS for Firefox 68 to update browser whereas from version 70 onwards they are going to use BITS via a dedicated “Background Update agent” to install Firefox updates.
Mozilla is handling the Firefox update task over to BITS on Windows. The company is also working on to bring update agent for Firefox browser for the last two years and is targeting Firefox 70 to launch the feature.
Interested users can enable BITS in Firefox browser by turning on these preferences