Mozilla is working to fix a browser flaw that could give attackers unauthorized access to data on a victims machine. The problem is similar to other data leakage flaws found in the open-source browser. Mozilla is investigating the issue and has rated it as a low-severity problem. The flaw affects only certain Firefox add-ons, such as the Download Statusbar or Greasemonkey, which store scripts in a fashion that lets them be discovered on the hard drive. “It’s also just a powerful way to do recon,” researcher Gerry Eisenhaur said.”]
Source: https://www.csoonline.com/article/2122488/mozilla-says-that-flaw-could-lead-to-data-leak.html