Hi, Mac 10.7.5 2GB RAM Opera 28 and 27 Since about a week ago, Opera has run slower and slower, and as of the other night, Opera has been running so slowly I've been unable to use it. MAC OS10,8,5 and OS10,12 are used by switching, it is a browser of Opera 48,0, but on OS10,8,5 it was suddenly said to be up to OS10,9, after that diagonal I can't use it because there are diagonal li. Opera doesn't run on Macbook Pro 2011 Opera for Mac. Opera 38 was released on June 8, 2016, based on Chromium 51. The succeeding versions would need at least OS X 10.9. It was the last version that would run under Mac OS X 10.7 and OS X 10.8.