in fact , before i reinstall my system , i have such addons installed in my opera 26.0 that can show tabs in multiply lines. but i can't find it anymore.

is there any addons for opera that will make new tabs in newline when it has reached max tabs in one line?

I opened about 20 websites , all tabs are in one line. I can barely see the titles for each tab.
Is there anywhere to change the settings, older opera have such options in settings , but i can't find in 26.0 opera