Posted by JakobP
Go to https://get.adobe.com/flashplayer/ and download the right version of Flash Player from Adobe. You’ll need Linux 64-bit, Chrome and the .tar.gz package.
Find the file you just downloaded in your file browser and unpack it. In Nautilus, you can right-click the file and choose Extract here.
Open a Terminal and navigate to the folder you just extracted using the cd command. It’ll be something like:
depending upon your setup. (Or you can use Nautilus to open Terminal by right-clicking inside the extracted folder and using the Open in Terminal option.)
There are several files in the folder, but you only need two of them (libpepflashplayer.so and manifest.json).
Now, create the folder where Brave looks for a Flash plugin installation:
sudo mkdir /usr/lib/pepperflashplugin-nonfree/
Then copy the files to that directory:
sudo cp libpepflashplayer.so manifest.json /usr/lib/pepperflashplugin-nonfree/
Make sure you enable Flash in Brave.
WARNING: You may have to do this again, if Flash player or Brave is updated. It will not be updated automatically by Solus.