Mozilla has released emergency fixes for two critical vulnerabilities in Firefox that have been actively exploited by attackers. Mozilla released version 74.01 of Firefox on April 3 to fix both vulnerabilities. The Tor Project released version 9.08 of the privacy focused browser on Friday to fix the two vulnerabilities. This is the second time this year that Mozilla has warned users about a vulnerability that was under active exploitation. The company said that attackers have exploited both flaws in targeted attacks, but didnt provide any more information.”]
Source: https://duo.com/decipher/mozilla-fixes-two-firefox-flaws-under-active-attack