automation - Is it possible to open several web pages when browser is started?

I am searching for browser option or plugin (it will be best if it is available in Web Kit browsers,Opera or Firefox - not IE) that allows me to open several web pages when it is initially started.

For example, let's say that I have some file with settings in which I have pointed the following websites:

1. Google +


2. gmail


3. StackOverflow.com


4. SuperUser.com


5. dba.stackexchange.com


6. linkedin etc...

and when I firstly started the Chrome browser, all this sites will be opened in new tabs and because the browser has saved my passwords I will be logged in.

I will find this very helpful because:

1. 
   

   It will saves me time

   
   


2. 
   

   I will not miss anything when I turn on my computer (for example to forget to check my mail)

   
   

Answer

Using Google Chrome:

Settings > On startup > Open a specific set of pages

Add whatever pages to the list that you wanted opened.

Alternatively, I never close my browser, so I just use "Continue where I left off" to recover from crashes and updates.