The Firefox Features page from the Firefox 4 era, April 2011 (web.archive.org)

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_....