How to fix youtube video buffering problem?

If you have a slow internet connection, you must have encountered youtube video buffering problem that whenever you toggle full screen, Youtube deletes video buffer and it starts streaming all over again. This is not any bug but actually a feature of Youtube.Ever since YouTube launched, users are complaining that they are facing Video buffering problem. Below are some solutions to fix YouTube Video
Buffering Problem.

All Browsers:

Step1: Goto www.youtube.com and signin with your username and password
Step2: Click on your name(found in top right corner), a drop down listhttp://www.blogger.com/img/blank.gif should appear
Step3: Click on settings and than select Playback setuphttp://www.blogger.com/img/blank.gif
Step4: Choose the option "i have slow connection.Never play higher-quality video".
Step5: Save it.

Firefox Browsers:
Step1: Open firefox, goto tools, then Add-ons, and Then search "GreaseMonkey"
Step2: Install the GreaseMonkey add-on
Step3: Goto http://userscripts.org/scripts/show/49366, and then click on Install

Google Chrome Browsers:
Step1: Goto http://userscripts.org/scripts/show/49366, and then click on Install
Step2: Once script is Installed, You will get an additional button installed on youtube whenever you watch videos,which solves the problem