Before someone "complains" about the browser's UI becoming similar to Chrome's, read this first.
Firefox 4's UI first did not copy
CHROME OR OPERA'S. Google or Mozilla were not the first to develop the idea of tabs on top. Firefox 4's UI is similar but much better than Chrome's. For example, when you open 80+ tabs (yes there are power users out there) into the tab bar, Firefox hides the tabs that won't visually pleasing fit on to screen. Chrome will try to fit all of them into the tab bar making it hard to differentiate between the tabs with millimeter sized tabs. Also Chrome still does not have a good organizer such as Firefox 4's tab candy. Chrome does not know how to deal with clutter.
The extensions in Chrome are inferior to those in Firefox collection. Google Chrome extensions API is terribly limited for extension developers when compared to Firefox extensions API. That is why Chrome is unable to create extensions equal to Noscript and Adblockplus. Even though ad blocking extensions for Chrome
CLAIM to be able to block ads with the newest version of Chrome, my findings with the latest stable Chrome build and Adblockplus for Chrome beta show the ads are
STILL only
HIDDEN AFTER LOADING. Even if ithe ads load for only a mere half a second, the fact is the browser is still hiding ads. Notscript is by far inferior to the original Noscript for Firefox. http
/optimalcycling.com/other-projects/notscripts/limitations/
Speed-wise Firefox 4 has made huge leaps in performance. You will physically be unable to notice the difference in page loading times between browsers. This is assuming you can't tell the difference between millisecond time differences.
In conclusion, Firefox 4 is superior to Chrome.