Forum Discussion
Algebraic_Mirror
Mar 24, 2015Cirrostratus
I just had the same problem, also with Firefox (v 36.0.1). Cache clearing fixed mine as well. The thought of cache clearing hadn't occurred to me yet, so thank your for your post! You saved me some time and helped me move forward.
I'd be curious to know what causes Firefox to get into this state in the first place. I've never seen this with Chrome or IE.