Flash, please! VK doesn't recognize it
I use VKontakte quite religiously, and Vivaldi doesn't recognize Flash Player for the audio or video files, nor does it do so for video conversations (VK actually supports video conversations). I've been proverbially tearing my metaphorical hair out trying to get flash to work. I'm a Linux user, specifically Ubuntu 14.04 32-bit. I've tried multiple routes, including the Google App store and trying to get the tar.gz package directly from the Adobe website, and converting it to a *.deb package and installing it on my system. Nothing works. Will there be flash support for Vivaldi?
You need the PPAPI version, I think Ubuntu doesn't have it for x86
Get it from debian
You'll probably get more help in the Linux forum
But have a look at https://vivaldi.net/en-US/forum/vivaldi-browser-for-linux/8771-adobe-flash-player-no-work-on-ubuntu-14-04-32-bits