An extension which saves your place (episode and current time) on twist.moe.
An unofficial extension for twist.moe that saves the episode you're on, and the time you're at.
This extension saves your place every 5 seconds, hopefully that shouldn't cause any lag. Please let me (@voxect on Twitter) know if it does, and I will increase that time. Eventually, I'll make it configurable.
Please remember that this is an unofficial extension, and is such is not endorsed by Anime Twist or any of its representatives.