Hi namal23:
Could you please describe how you solve this problem in more detail?
I met the same problem and cannot figure out how to handle the flash player for a while.

I installed papperflashplugin on my ubuntu, but the flash player still didn't work with opera (it does work with chromium..).

Hi everyone :
I'm so excited to notice that the sycn function has been done!
But I just met another problem about the flash player and cannot enjoy it yet.

I've installed pepperflashplugin, the Shockwave plugin works fine with Chromium, but does not work with Opera.
Also, I downloaded adobe flash player (.tar.gz) and have libflashplayer.so file already，but cannot figure out a a way to install this plugin.
I tried to move it to /usr/lib/x86_64-linux-gnu/opera and other places, non of them works.
When I check installed plugins from "Developer Tools" -> “Plug-ins”, only the old shockwave plugin is there.
If anyone can help me solve the flash problem, I'll really appreciate.

I use opera 28 on my ubuntu machine, and the detail info is as below :

Version information
Version: 28.0.1750.48 - Opera is up to date
Update stream: Stable
System: Ubuntu 14.10 (x86_64; KDE)
Browser identification

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.89 Safari/537.36 OPR/28.0.1750.48

Paths
Install: /usr/lib/x86_64-linux-gnu/opera