Open new tabs at extreme right in Firefox

Mozilla Firefox version 3.6 has a new tabbing behavior : when you click on a new link which is supposed to be opened in a new window or tab, or you right-click on a link and select - Open in a new tab, the tab is inserted right next to the current tab. This is different from the older behavior when the new tab was opened to the extreme right of all the tabs. If you do not like the new tabbing behavior, there is a way to change it back to the older way of tabbing.

1. Open Mozilla Firefox
2. Type about:blank in the address bar and press Enter
3. Click on the I’ll be careful, I promise! button when prompted with warning dialog as shown :
   
4. In the Filter textbox type browser.tabs.insertRelatedAfterCurrent. You would see preference list filtered as shown in the picture :
   
5. By default the value browser.tabs.insertRelatedAfterCurrent is true. Double click on it, to change its value from true to false.
6. Close the tab and you would have the old tabbing behavior back.