What to use for browser flash support?

[Harry Putnam]

Running lubuntu 17.18 (artful)

Using chromium, I run into some videos (On msnbc's full episodes of
their various news/talk shows.  clicking the `full episodes' link at:
   http://www.msnbc.com/rachel-maddow-show#!#full-episodes

For example, brings up the error message:
,----
|   To watch video, download or enable adobe flash player plug-in in
|   your security preferences.
`----

Whereas the other main link `playlist':
   http://www.msnbc.com/rachel-maddow-show#

Just shows the videos with no problem.  Maybe those are not flash ....

Is there something I can install that will satisfy the `adobe flash
player plugin' requirement.