Mozilla’s browser had largest percentage of Web vulnerabilities over the six-month span. Apple’s Safari had the dubious distinction of coming in second place. Microsoft’s Internet Explorer (IE) was third, while Opera Software’s flagship browser took fourth place. Firefox accounted for 44% of all browser bugs reported in the first half of the year. IE, meanwhile, accounted for 15% of the total, while 6% of flaws were in Opera’s Opera. Mozilla has been slammed for the number of flaws it fixes in Firefox before.”]
Source: https://www.csoonline.com/article/2124514/firefox-flaws-account-for-44–of-all-browser-bugs.html