NoScript + PingFire = problems

Note to search engines: the PingFire extension for Firefox doesn't work when NoScript is also installed. Check the official PingFire support thread for more info.

Update: I removed PingFire and replaced it with a simple bookmark-in-sidebar hack:

1. Create a bookmark pointing to http://ping.fm/m (the "mobile" site for Ping.fm) and place it on your Bookmarks Toolbar
2. right-click on it, select Properties
3. check the option to "Load this bookmark in sidebar"

This is one of the very few occasions in which I found the Firefox sidebar quite useful.