There are several ways to "right click" on your MacBook. If you do, you can save a picture from the Web using the contextual menu that appears.
1. Hold down the "control" key while you click.
2. Use a mouse that has multiple buttons.
3. In the Keyboard & Mouse System Preferences under the Trackpad tab, check on the option that says, "For secondary clicks, place two fingers on the trackpad then click the button". This is the way I prefer. When you have this option enabled, you can place two fingers on the Trackpad and then simply click the button and the contextual menu will appear.
There are several ways to "right click" on your MacBook. If you do, you can save a picture from the Web using the contextual menu that appears.
1. Hold down the "control" key while you click.
2. Use a mouse that has multiple buttons.
3. In the Keyboard & Mouse System Preferences under the Trackpad tab, check on the option that says, "For secondary clicks, place two fingers on the trackpad then click the button". This is the way I prefer. When you have this option enabled, you can place two fingers on the Trackpad and then simply click the button and the contextual menu will appear.
As a quick fix, I like the option of using the preferences to set two fingers on the track pad to indicate a secondary button click.
I also use a Microsoft wireless wheel mouse with my MacBook. No driver software is required, just plug it in and it works the same way it would in a windows environment. I was pleasantly surprised at how many Macintosh applications are support a multi button pointing device - even going so far as to support the scroll wheel.