Watching videos at YouTube can be a lot of fun, but the pages are too full of clutter. If you want to literally clean things up in moments, then all you need is the CleanTube extension for Opera.
Compare the same YouTube page with CleanTube disabled to the image shown above. CleanTube literally strips the page clean of all the junk! Enabling and disabling the extension is extremely easy…just left click on the toolbar button in the upper right corner (green for active and red for disabled).
Note: You can also specify a custom height for YouTube videos if desired in the Preferences. (YouTube default = 360, CleanTube default = 480)
CleanTube [Opera Extensions]