Adblock Plus Preferences appear for no reason...
I just moved my Firefox (everything) from my USB drive to the hard drive, and now the Adblock Plus Preferences box appears, at first when I would press a button on the keyboard, and now when I change the site (could be triggered by master password prompt). The only change I made was setting the fixes so that they would adjust for drive letter and the directories so that they'd be accurate. I also got a few unresponsive script notices (quite odd), and I told it to continue on all of them. I've gotten those notices before, but only when a) an autoupdate was interrupted or otherwise messed up or b) when I use a USB1.1 port and have to adjust for drive letter changes with a lot of extension changes (e.g. pending installations).