Install FIREFOX 2 addons in FIREFOX 3 RC1

I was very bored at home and thought of trying something different in my computer. So, i installed windows xp in VMWare workstation and started to work on it. For browsing the internet, i installed Firefox 3 RC1 and wanted to install one of my favourite addon. But wat i found was " add on incompatible" notification from firefox. So, i searched for ways to install add ons in firefox 3 and this is wat i could find.

• Type about:config into Firefox's address bar and click the "I'll be careful, I promise!" button.
• Right-click anywhere. Choose New>Boolean. Make the name of your new config value extensions.checkCompatibility and set it to false.
• Make another new boolean pair called extensions.checkUpdateSecurity and set the value to false.
• Restart Firefox.

But still, the addons page dint show me the option of " add to firefox". So, i sorted out another way to install the addons. After making the above changes to your firefox,do the following

• go to the addons page in internet explorer or any other browser and then download the required firefox addon. You will download a .xpi file.
• Now open Firefox 3 and go to Tools > Add ons. And then drag and drop the downloaded .xpi file into the Addon window and your addon should now get installed.

P.S : The firefox add on window will show you a notification to enable the addon compatability checking. do not enable it else you may not be able to install the addon.

If you are in linux, try to download the addon with some other browser.