FTP support is removed by Google because Chrome does not support 'encrypted connections' or proxies in its FTP implementation. Google announced the plan to deprecate ftp support in 2015 but has postponed the execution several times in the past. Windows users get an end-of-life popup for instance if Flash is still installed on a system. Flash will be removed from browsers and also operating systems such as Windows. Chrome shipped with its own Flash component and that component is now gone so that Flash content cannot be loaded in Chrome anymore. The biggest change in Chrome 88 is that Google removed Adobe Flash from the browser. CVE-2021-21117 received a rating of critical, the highest severity rating, several ratings of high, the second highest rating.
The Chrome Releases blog lists some of the security fixes of Chrome 88 (only those reported by third-parties).
