Since upgrading from OpenSuSE 13.3 to Tumbleweed, opera 12 stopped playing webm videos.
Example URL: https://www.isnichwahr.de/r260969-finisher.html
As there is no error message, how do I find out the reason? I suspect either hardware acceleration or missing libraries/codecs.
I already did a lsof of an instance playing a webm, then copied these from the working installation to the upgradedd installation.
If you ask why opera 12: Opera 15+x is incompatible to having two screens as it tries to bypass the window manager. It's incapable of integrating itself into the desktop theme. No option to limit history to the last n hours or automatically erasing it on browser shutdown as only that is useful. Cookies - enable them globally since you can't manage them by site except by visiting a sub-sub-sub-submenu ... or trust a random plug in author.
I guess by looking at the progress, Opera 0815 might bring back privacy and security.