Jupyter Notebook launches the start page with MacVim instead of Safari
Solution 1:
I had the same issue. Here is how I fixed:
It seems that using the OpenWith option only works once. To change the default application permanently I did the following:
Select an HTML file and right-click on it. Then you select Get Info and in the Open with section, select a browser as the default application and click on the Change All... button.
I hope it helps