Nice tip spotted in the BB comments for avoiding “Facebook malware” – In Firefox, install AdBlock plus, add these filters (above). Now you can browse the web without Facebook installing applications you don’t want or sharing information with sites you do not want information shared with, or at least only ones you choose. This will remove “Likes” on sites as well, but you can manually pick which sites are OK for Facebook features to be displayed on. It’s your browser, your time – on your display.
Update!: Facebook posted in the comments. If any makers have questions for them, this might be your chance!
I work for Facebook and would like to clarify that these applications were not malware, as the title of your post suggests. There was a bug that was showing applications on a user’s Application Settings page that the user hadn’t authorized. However, no information was shared with those applications, and the applications did not appear to anyone but the user. We fixed the bug shortly after it was discovered.
We’d appreciate it if you would update your post with this information. In the future, please don’t hesitate to contact us at firstname.lastname@example.org. Thanks.