Recently, Mozilla has publicized a new security weakness affecting Firefox users. This time a Remote Code Execution (RCE) bug, having the potential to let invaders run code on pretentious machines has been publicized. RCE is the second Firefox abuse mended within this week. The fresh Mozilla Security Advisory detailed that the new bug called CVE-2019-11708 perpetrated all previous varieties of Firefox and Firefox ESR web browsers. The error has been fixed in the novel Firefox 67.0.4 and Firefox ESR 60.7.2 versions. Mozilla has regarded the most recent Firefox flaw as high impact, a title reticent for susceptibilities that can collect