Currently Being ModeratedJan 5, 2013 7:15 AM (in response to Yellowbox)
Flash is perfectly safe on a Mac.
However, it is slow and unreliable. I have it installed on my MB but not on my G5 as it sent the machine to 100% load instantly (although that is on PowerPC).
Currently Being ModeratedJan 5, 2013 6:08 PM (in response to Yellowbox)
Adobe Flash Player Software is actually a plug-in and not an actual "player" or "application." With this plug-in you will be able to view flash videos on Quicktime (with help from Perian) and VLC. I believe Flip4Mac also.
After the installation, make sure you repair permissions and restart your computer prior to usage.