• When favoriting a friend they move to the favorites column with an animation. If you unfavorite that friend, the animation just goes to the bottom of the favorites column and then they pop right back to alphabetical order still in the favorites column (though the toggle is changed back to 'favorite' and it does correct on reloading).
• When accepting a pending request, you get a very small/easily overlooked loading icon with (seemingly) no actual page update
• The whole page/frame seems to load quite a bit slower than the regular site, but that's possibly just subjective.

Chrome (up to date) for me, didn't try to replicate in FF yet.

Same happens on firefox, and it is a very slow loading page.