What are some bugs and known problems with Facebook?

Facebook has very good documentation about bugs and known problems ranging from Login and password to third party applications.

Do you need to report a bug?

1. Go to bugs and known problems.
2. Select a topic from those displayed that you have a problem with.
3. Read through the issues associated with that topic.
4. If you cannot find the answer you are looking for, look for and click on a link called My question is not listed above.
5. Report your problem to Facebook.  (For some reason, not all topics give you the option of asking general questions or reporting a bug.)