Since we released version 6.5.1, we have identified more patterns that cause critical Gecko engine dll file issue. So this 6.5.2 is an additional fix for the specific problem.
This issue sometimes makes Gecko engine unusable or causes Lunascape to crash. If any of you are still experiencing such annoyance, please upgrade it to the new version so that you can enjoy Gecko engine once again.
We sincerely apologize for the trouble and will keep working at it.
Update notification will be coming to you sometime next week, but if you’d like to upgrade now, please visit the link below.