List of a Few Extension that might be Really helpful for your further Development.

• Colorzilla

A nice Extension for Picking color from your browser, The page your are visiting or from the pallet.

[ Firefox | Chrome ]

• Url Shortener

A simple Extension for Using a lots of Url Shortening Service like bit.ly or is.gd or goo.gl

[ Chrome | Firefox ( A near Match ) ]

• Any.do

A simple Task management Extension, If you are using a slow internet connection and hate to get to trello all the time, this one might help you a bit.

[ Chrome | Firefox ( Alternative) ]

• Firebug

If you are already in web development arena, I don’t need to say a word about it. Its your best friend in the browser. Chrome Have a Built-in Dev tool just like firebug. So if you are a Firefox user, Get it now.

[ Firefox ]

• CIRC

Lightweight and out-of-box IRC client for Chrome. Simple and easy to use, Beside that, i like the interface. You should have it to keep in touch with several dev community.

[ Chrome | Firefox ( chatzilla ) ]

• Save As PDF

Save any page as a PDF. Helpful for saving any tutorial and docs for offline Reading. This one is Highly Re commanded for Developers from Bangladesh who use a Limited or Slow connection.

[ Chrome | Firefox ]

• SEO optimizer

A Shortcut tool for SEOPTIMER, Really helpful for simple SEO task. Not for Professional SEO experts, Just for preparing a Webpage for the go.

[ Chrome | Firefox ]

• SimpleTest.IO Site Checker

A nice Broken link Checker for Your website. It will find you if there is any broken link in your site.

[ Chrome | Firefox ( Alternative ) ]