Comment 2 for bug 901838

Created attachment 580512
Video of the "spinning" cursor in Thunderbird 8

I've noticed whilst running Thunderbird 9 beta that when my mailboxes refresh, my mouse pointer changes to a really ugly busy cursor. In Thunderbird 8, the cursor seemed to not look too bad.

I just rebuilt the latest comm-beta after reverting http://hg.mozilla.org/releases/mozilla-beta/rev/875cb4f20eac, and it seems to fix it. I've not fully investigated why this patch would break it just yet.

The less attractive spinning cursor also appears occasionally in Firefox too, although it appears a lot more in Thunderbird.

This can be easily reproduced in Firefox or Thunderbird by using a JS shell and doing window.setCursor("spinning"). I've attached 2 videos of me doing this before and after reverting the mentioned patch