ਐਡ-ਆਨ

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.

Adds a Tabs menu to the main menu that lets you easily change between tabs.