Flash Player and Vivaldi
Tried to do a speedtest on kabel-deutschland.de. This obviously uses Adobe Flash player. Vivaldi tells me the flashplayer is out of date. However it works with IE and Firefox and I have installed latest version. So is it not possible to use such sites with Vivaldi
Just tried it and in worked fine for me. Probably you need the PPAPI version of flash (the one for opera and chrome) which is available at adobe
Check. I Just tried Vivaldi with the new Windows 10 preview, same flash problem as described by you. Ahter installing the PPAPI flash version it worked fine.