How to Open Multiple Tabs. Most browsers allow you to open new tabs from the "Menu" button or from a "New Tab" button located next to the last open tab in the browser window. These methods only ...

Learn how to open new tabs when typing URLs into the address bar in many browsers.

How to Open a New Tab in Safari While Clicking on Something. Tabs allow you to simultaneously open numerous Web pages in Safari without cluttering your taskbar with multiple Safari windows. By ...

You can easily open a link in a new tab on your Mac computer by right clicking or using a keyboard shortcut.

Tweak a setting and Google will open a search result link in a new tab instead of your current tab.

I don't know about IE9 but Firefox 4 has "Open new windows in a new tab instead" checked by default. I assume IE does the same things which explains the behavior you're seeing.

We’ve broken down some helpful tab management tips and tricks for the most popular web browsers, from lesser-known built-in tools to useful extensions.