The traceback mentions that it is missing an expected variable, the username. Looking at the code I think gwibber just isn't handling the case where facebook doesn't tell us what your facebook username is. Which is clearly a problem, since facebook doesn't require usernames and not everyone has one. Many people might end up not having one and we need to handle that case in gwibber. I need to review the code to figure out how much we depend on that existing.
The traceback mentions that it is missing an expected variable, the username. Looking at the code I think gwibber just isn't handling the case where facebook doesn't tell us what your facebook username is. Which is clearly a problem, since facebook doesn't require usernames and not everyone has one. Many people might end up not having one and we need to handle that case in gwibber. I need to review the code to figure out how much we depend on that existing.