I downloaded FF31 a few days ago and have been using it with no problems, so it may be something specific to your PC.
Not sure what to suggest- maybe you could try uninstalling FF31 altogether and re-installing it again (or an earlier version?).
I downloaded FF31 a few days ago and have been using it with no problems, so it may be something specific to your PC.Not sure what to suggest- maybe you could try uninstalling FF31 altogether and re-installing it again (or an earlier version?).