One of the features that I loved about the Opera browser was the Duplicate Tab feature which came pre-installed with Opera. Looking up ways on how to implement this in Firefox, I discovered two options:

I had been a fan of the Opera browser for quite a time, mainly because of its speed, but I eventually switched to Firefox as my browser of choice. Here are my reasons for doing so:

1. Some of the sites are not fully functional in Opera. An example is the Contacts box in Gmail which does not appear in Opera. I think this is a scripting problem.