1) The password will not be saved, as it is only once used to create an access token according to the guidelines I found in this forum. You do not need to re-authenticate upon relaunch of app or computer. The sentence is confusing, I will remove it in the next version.
2) Strange, I will look into this! The program tries to detect available browsers. On my system Chrome is presented as option.
3) + 4) Thanks for the input, will add it to my TODO list!
Oh no a crash! Thanks for the log, will address this as soon as possible. Please allow more time for new features however.