Stop these pop ups

How do I get the the "Do you want to close all Tabs or the current Tab" notice from popping up? I just want to close one tab at a time - always.

How do I get the "Best Matches for--------" (webpage suggestions) to stop popping up?

Thanks

What browser?

Simplest way to close only the current tab without any warning is to hit Ctrl + W while in the focus tab. As for the warnings, you can disable them in Internet options-general-Tabs, as explained here. But that'll close ALL tabs without warning.

Internet Explorer 9 Tabs | help.artaro.eu

For the best matches problem, change the auto-complete settings.

Edit AutoComplete Settings in Internet Explorer