I hate to rain on the parade, but I'm not a fan.
The "light" theme is gone. The dark theme doesn't have quite enough contrast, and is really hard for me to read more than short phrases, even zoomed in.
----------------------------------------------------------------
Addon pages are really generic looking overall, and hide important things like the links for reporting bugs or requesting features. Enough people already overlooked those with the old design. Now they're not even "above the fold", so even fewer people will notice them. I'd also guess that most people won't notice the link to view additional screenshots. A simple way to improve this would be to switch the order of things in the right column around so it went:
- Download
- Add to Favorites | Install Help
- Report Bugs | Request Features | Author Portal
- [advertisement]
- [screenshot #1]
- [screenshot #2]
- [screenshot #3]
- [screenshot #4]
- [screenshot #5]
- [link to more screenshots if > 5]
- [info box]
I'd also suggest putting the "updated" date up with the download link, and the info box at the bottom, since the vast majority of users probably don't care about anything in it.
----------------------------------------------------------------
Addon pages (and probably other pages) don't work if JavaScript is disabled. Previously, if JavaScript was off, the changelog, archived/additional files, and comments were displayed linearly below the description. Now, unless CSS is also disabled, those things just aren't shown at all.
----------------------------------------------------------------
Finally, I really, really,
really hate when sites use dropdowns for everything under the sun, especially when it's not obvious what
is a dropdown (for example, "Forums" is a dropdown, but "Help" is not, and there is no visual distinction between the two). I greatly preferred the old two-level navigation system, where you clicked on a tab to select an area of the site, and then chose a specific page from the horizontal menu that showed everything relevant to that area. It's especially annoying to accidentally move the mouse over something and have a menu pop up covering large areas of the screen; since I browse at 140-160% zoom (depending on how long I've already been staring at a screen today) it is indeed a fairly large area.