The Chrome extension aims to provide you with unified sessions and bookmarks manager, which will allow you to save open tabs and restore them later easily. So if you want to make sure that you don't lose any progress because of a sudden crash or restart, you should install the Session Buddy Chrome extension.
That isn't the only way you can restore Chrome tabs after a restart, and there's a chance it might not work if you open and close more tabs after the restart. How to Restore Chrome Tabs After Restart Using Session Buddy