Multiple Homepages in Mozilla Firefox
With all of the websites I frequent at work, I'm always opening the same tabs over and over when I get on the clock. Annoying to say the least. You can imagine my joy when I figured out how to have multiple homepages in Firefox.

The Execution
Step 1: Fire up Firefox.
Step 2: In the main menu, go to Tools -> Options
Step 3: In the Startup tab, enter your desired homepage URLs separated by pipes in the "Homepage" box.
The only downside to using the multiple homepage system is that every hompage opens when you click the "Home" button.
![JavaScript Promise API]()
While synchronous code is easier to follow and debug, async is generally better for performance and flexibility. Why "hold up the show" when you can trigger numerous requests at once and then handle them when each is ready? Promises are becoming a big part of the JavaScript world...
![5 HTML5 APIs You Didn’t Know Existed]()
When you say or read "HTML5", you half expect exotic dancers and unicorns to walk into the room to the tune of "I'm Sexy and I Know It." Can you blame us though? We watched the fundamental APIs stagnate for so long that a basic feature...
![HTML5’s window.postMessage API]()
One of the little known HTML5 APIs is the window.postMessage API. window.postMessage allows for sending data messages between two windows/frames across domains. Essentially window.postMessage acts as cross-domain AJAX without the server shims. Let's take a look at how window.postMessage works and how you...
![Create Spinning Rays with CSS3 Animations & JavaScript]()
Thomas Fuchs, creator of script2 (scriptaculous' second iteration) and Zepto.js (mobile JavaScript framework), creates outstanding animated elements with JavaScript. He's a legend in his own right, and for good reason: his work has helped to inspire developers everywhere to drop Flash and opt...
Or open the tabs you want as starting pages and press “Use Current Pages” in the Options.
Or use Opera. It has support for 9 sites on speed dial (little thumbnails of the site for your homepage).
I’ve never been high on Opera. The UI has always been a major turnoff for me. And I now depend on my Firefox plugins for development.
To open a blank tab, add a pipe after the last url.