Suddenly Safari is having weird problems:
The search bar is no more searching: I can type URLs but the suggestions are not appearing and queries are not sent to Google (or any other search engine I choose in the preferences)
If I open a new tab, the tab is not shown: I see the old one in dark grey, the new one is open but not shown in the tab bar. The address bar shows the URLs of both tabs superimposed
Restarting the whole machine did not bring anything.
Any idea what could I try to fix the problem? I am using Safari 9.0.3 on El Capitan.