All you need to do is, simple right click & hold to drag a box around your required links, when you release, it will automatically open (in a new tab), copy and bookmark those links which is the default option and you can change it to your requirements. You can also fully customize the look of these links through colours, border styles etc.

You can select groups of links in different areas of the page by using the shift or ctrl keyboard keys. This comes in handy if you want to open #1,2,3,4 and 7,8,9,10 in Google missing out #5 & 6 for example. You can either drag a box around them all and then use shift or ctrl to deselect #5 & 6 or select #1,2,3 & 4 and then hold shift or ctrl and draw another box around #7,8,9 & 10.

This particular addon supports major search engines like Google, Yahoo, MSN and Bing.

Download here.

You also might want to check out our previous post on Firefox Add-ons:

- 12 Useful FireFox Plugins For Safe Browsing