Mozilla engineers say that recently they've discovered apps abusing Firefox's accessibility (a11y) feature to access and collect user data stored inside Firefox.
"We're detecting a long list of obscure and some not so obscure 3rd party Windows applications that use accessibility to snoop on user activity," explains Jim Mathies, Software Engineering Manager for Mozilla.
"We want to cut down on this by better communicating when [accessibility] is active," Mathies added. "This bug is about adding a new section under preferences -> privacy that displays a11y active state and provides a switch to force accessibility off."
In addition, Mozilla engineers have also added a new section in the Firefox "about:support" page called "Accessibility." If access to Firefox accessibility is enabled, this section will list all apps currently using the feature.
This will allow users to detect rogue apps that use Firefox's accessibility feature to spy on users and surreptitiously collect telemetry data.