Generally i don’t care about browser plugins or apps, but from past few weeks i have started using chrome apps, wonderful experience with them like
"Ad Block Plus- it is able to block all advt. on almost all the sites you will go."
"iReader- very good for reading on sites"
"Times of India"
"The Hindu Newspaper"
"X-Notifier- mail checker"
"FB photo zoom- good one"
Generally if you surf various websites at a time, Mozilla Firefox does it very well.