Firefox: New tabs position

Before Firefox 3.6, new tabs were always opened at the far right of the browser. In Firefox 3.6, when you open a new tab from the current tab, the new tab is inserted next to the current tab.

After upgrading to Firefox 3.6, I noticed it preserved the old behavior for existing profiles. Only new profiles will default to the new behavior. Good intention but as I create new profiles, I now have different profile with different behavior, which is a little bit annoying.

Luckily this feature can be enabled/disabled with a few easy steps:
1. Go to about:config
2. Filter tabs.insertRelatedAfterCurrent
3. The default value is true. Change it to false if you want the old behavior


Ref:
Open Tabs At The Right [Firefox] | gHacks Technology News