Inspired by this post [1], I decided to go down the memory lane a bit. I remember Firefox 4 being a major overhaul that I was very excited for. It was the first release that moved the tab bar to the top of the UI, probably because Chrome did it.
Further reading:
- Firefox 3.6 features [2]
- Firefox 4 release notes [3]
[1] https://news.ycombinator.com/item?id=28183707
[2] https://web.archive.org/web/20110307082835/http://www.mozill...
[3] https://website-archive.mozilla.org/www.mozilla.org/firefox_....
