Rated 4 out of 5 stars

I like this addon a lot, but sadly, gecko 18 apparently changed cache infra or so and this addon doesn't work no more.

Error: NS_ERROR_NOT_AVAILABLE: Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsICacheSession.openCacheEntry]
Source File: chrome://bugmail/content/overlay.js
Line: 65