[dfsdfklgjljg]

can't you just set the new tab page url to the wikipedia random page link?

[joaotarla]

Actually not, the only way to do this is using an extension. The source code is here: https://github.com/tarla/random-wikipedia-chrome-extension

[szatkus]

If my memory is right it was possible in old versions of Chrome.

I see it's possible in current Firefox, but only for new windows :/