I might play with that in the future. However

• Opera 29 did not crash
• Chrome does not have a problem with ffmpeg (does not crash)
• crashes are not related to playing videos, for example, Gmail just crashed in the background...

I left Chrome because it's lack of support for hiDPI displays. But that is no longer a problem, so it seems to make sense to go back... it's more stable now, and does not have a problem with my remapped Caps-Lock key...

ffmpeg version 2.5.7-0ubuntu0.15.04.1 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.9.2 (Ubuntu 4.9.2-10ubuntu13)

I can no longer login to Paypal, for example, but on average 5% of the pages crash regularly. What happened to Opera 30???

This is on Ubuntu 15.04. The only extensions I use are uBlock and User-Agent Switcher (usually inactive).

Version: 30.0.1835.59 - Opera is up to date
Update stream: Stable
System: Ubuntu 15.04 (x86_64; Unity)

Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.81 Safari/537.36 OPR/30.0.1835.59

"Unfortunately" CAPS-LOCK is recognized as CTRL when I configure the shortcut...

I have remapped CAPS-LOCK to CTRL with the help of the Gnome Tweak Tool (running Ubuntu 15.04). Up until Opera 29 everything worked fine, however, in the latest Opera (30.0.1835.59) I can no longer cycle tabs with (SHIFT-)-CAPS-LOCK-TAB. This key combination brings up the tab list and a preview window, however when I release CAPS-LOCK nothing happens. I have to press CTRL to activate the selected tab.

CTRL-TAB works just as before. Also, in every other application CAPS-LOCK is properly recognized as CTRL.