In T3867#68451, @JoshStrobl wrote:

sorry my english

ppapi ----> for vivaldi

npapi ------> for firefox

but no for opera ok?

In T3867#68457, @JoshStrobl wrote:

Opera would use PPAPI, just like Vivaldi, because it is based on Chromium. If it doesn't, this is something they should address. The Software Center and Third Party merely provides examples as to browsers that would use the respective APIs.

i don't know vivaldi use which path but chromium use /usr/lib/chromium-browser/PepperFlash and work it.

i know now opera-stable use path that /usr/lib/adobe-flashplugin that provide adobe-flash plugin and work it.

Opera should be searching in the same path as Vivaldi, their pepper_flash_config.json PepperFlashPaths validate as such:

[~] cat /usr/lib/opera/resources/pepper_flash_config.json                                                                                                                                             
{
  "PepperFlashPaths" : [
    "/usr/lib/adobe-flashplugin/libpepflashplayer.so",
    "/usr/lib/pepperflashplugin-nonfree/libpepflashplayer.so",
    "/usr/lib/PepperFlash/libpepflashplayer.so",
    "/usr/lib64/PepperFlash/libpepflashplayer.so",
    "/usr/lib/chromium-browser/PepperFlash/libpepflashplayer.so",
    "/usr/lib/chromium/PepperFlash/libpepflashplayer.so",
    "/usr/lib64/chromium-browser/PepperFlash/libpepflashplayer.so",
    "/usr/lib64/chromium/PepperFlash/libpepflashplayer.so",
    "/opt/google/chrome-beta/PepperFlash/libpepflashplayer.so",
    "/opt/google/chrome-unstable/PepperFlash/libpepflashplayer.so",
    "/opt/google/chrome/PepperFlash/libpepflashplayer.so"
  ]
}

I don't know that why do work with chrome and vivaldi and do not work with opera because both installed in system.

you can test it that install opera-stable

http://www.fullhdfilmizlesene.org/macera-filmleri-izle/zaman-gezginleri-allein-gegen-die-zeit/

or

https://get.adobe.com/de/flashplayer/about/

Yo, I'm not certain if this is the same issue, but I'm having trouble with Opera detecting my install of Flash (not a custom install; just the one that Solus ships with). Other browsers seem to run Flash fine, but not Opera - http://isflashinstalled.com shows "Nope!"

EDIT: So I'm just verifying that I also am having the same (?) issue.

@SolarLune Yes and it doesn't change my statement.

I have the same problem with the latest Opera and third party plugins installed. Attaching some screenshots below.

I have this issue with Vivaldi. Testing: videos on imdb.com won't play.
Same vivaldi version works fine on Ubuntu.
Tested with both vivaldi stable and snapshot - both fail.