You can get smoother scrolling with an extension (there's more than one). See

https://forums.opera.com/topic/2093/internet-explorer-s-scroll-smoothness

for a discussion.

A little convoluted, but if you show the bookmarks bar, create your folders and sub-folders there, then right-click on the main folder on the bar and choose "Save as speed dial folder" you'll have what you want. Personally, I'm happier just using the bookmarks bar for everything.

There's an extension called "Bookmarks Import & Export" which will do it for Opera versions 15 and newer.

Opera's 2014 annual report says there were 1458 employees, far from 30.

Oops! Looks like Firefox will be going this way at the end of June. See:

https://addons.mozilla.org/en-us/firefox/addon/disable-dhe/

If you post a link to a page that throws that error, someone here might be able to help (maybe).

Check that you don't have "Opera Turbo" enabled.

Opera extension "Bookmarks Import & Export" should do it for you.

To eliminate the "gap", click on the Opera symbol at top left, then "Settings" and put a check next to "Disable tab bar's top spacing when browser window is maximized".

Shockwave Player shows up in my plugin list as enabled, but it doesn't work *also Win7-64), and it hasn't for several months (and a few updates). Some Chrome users reported a problem a while ago, as well. I've never found a solution.

FWIW the speed.cd loads fine here with 26.0.1656.60 and a bunch of extensions and plugins.