Back in 2017, Adobe had announced that it would be ending support for its Flash browser plug-in at the end of 2020. The time for that to happen finally came, and so support for the software has been terminated. Starting January 12, Adobe will be blocking content from running in Flash Player.
The change, even though major, is not going to impact users as such, since many popular browsers have already abandoned the format. As for users of iPhone and iPad, the devices never supported Flash in the first place.
Back in 2010, Apple’s former CEO Steve Jobs expressed in an open letter his criticism against Adobe’s software in terms of its reliability, incompatibility with mobile sites, and battery drain on mobile devices. Jobs further added that Adobe was "painfully slow” at adopting enhancements to Apple's platforms.
Adobe’s Flash Player had experienced problems that were causing Mac and PC users to be exposed to malware and other security risks, leading to vendors like Microsoft and Apple continuously working trying to keep up with security fixes.
Adobe has recommended users to immediately remove Flash Player to help protect their systems, now that it will no longer function.