I am having kinda big problem for a week or so already, which gave me time to analyze problem and try some solutions (none helped)

So if i am having any kind of video site in any of the tabs (youtube, some anime sites etc) after x minutes of having such site opera will crash/restart in matter of seconds, meaning if i was watching some of the mentioned videos that i would have to jump to the part i was watching to continue

it happens only on opera 26 and opera developer (i tested both versions, newest releases) for couple of days each, old opera (before chromium versions) works but is not such a good solution atm as it is sluggish and slow once u get used to chromium (and some sites won't load etc)

i removed all the plug ins that i used so opera is now "naked", newest flash(that PPAPI version installed after regular, didn't affect anything), newest quick time installed so i have really no idea what more to do (cleared even browser history in hope it helps, which didn't)

if there is no video tab opened everything functions normal but that means i can't even have youtube in background with some song

I googled and doesn't seem like any1 has such a problem which only left me to post here hoping for some solution

thx in advance