Hi there, I recommend installing flash plugin manually, which mean that you can get the latest update of Adobe. Full tutorial can be found at How to install Flash for Opera manually

Thank you guys. For all who have this issue. Using Adobe Flash Player Version: 22.0.0.209 gonna help you work around this issue. My solution is to download and override the flash player at
/opt/google/chrome/PepperFlash/libpepflashplayer.so

NOTE that it's need to replace libpepflashplayer.so and manifest.json file if you do.

Hello guys, I start this discussion because in the opera devel 42.0.2372.0, I have figure out some problems.

The flash player does not work

I did try with flash ver.23.0.0.162 and ver.22.0.0.209; In addition, there is an security issue with flash version 22.0, I intend to upgrade to version 23.x or different version of flash from others.

I got difficulty in changing plugin path.

It used to be easy as in documentation "Search with 'General principles of manual installation' Installation of Plug-ins for Opera on Linux ". I suppose to make a new plug-in path for opera instead of using together with google-chrome, but I cannot find documentation talking about this.